how to make a face sculpture

Place the Styrofoam tray on a table. To make the monkey’s eyes and forehead, use an old egg carton. Cut off the ends of the carton and place them side by side so they fit in the tray. Now cut out a rectangular piece of each carton’s top so the two egg cups inside are visible. For the mouth, place a Styrofoam bowl upside down on the tray.To make the nose, cut off the bottom half of a Styrofoam cup, but leave a point on one side. Place the nose, pointy side up, just under the eyes. Make the monkey’s cheeks by rolling up two plastic bags and placing them beside the nose.Roll green modelling clay between your hands until it is the shape of a long skinny worm. Place the skinny piece of clay above the monkey’s eyes. Roll up two more pieces of clay and place them around each eye.Use your fingers to press the modelling clay into the Styrofoam. This keeps the clay secure and gives it more texture.Place red modelling clay around the Styrofoam bowl. Again, use your fingers to press the clay into the Styrofoam.Keep placing modelling clay all around the monkey’s face, like in the photo.Place the monkey’s face on an old towel, one that you’re not worried about getting dirty. Gather together the three spray bottles and the paintbrush.Lay four strips of toilet paper, lengthwise, over the monkey’s face.To add colour to the toilet paper, spray yellow water in the middle of the monkey’s face, spray red around the yellow, then green all around the edges.Dab the paintbrush gently onto the monkey’s face. See how the toilet paper sticks to the modelling clay and the monkey’s face starts to pop out?Add five layers of toilet paper in total. Place the second layer of toilet paper horizontally. Place the third layer lengthwise, and so forth. Once you do five layers, set aside the monkey’s face to dry—it will take all night.Once the monkey’s face is dryPop the monkey’s face right off the Styrofoam tray, then trim along the edges of the face with scissors. It looks amazing!Make more animal face sculptures, like an ostrich...or the king of all animals, a lion! Roar!

how to make banana mation

Place the banana in the tape roll so it can stand on its own.Stack the books about an arm’s length away from the banana and set your camera on the books.Adjust the height of your camera by adding or removing the books so you don’t see the roll of tape.Take a picture.Carefully peel back the banana peel just a little bit.Take another picture!Peel the banana a little bit more.Take another picture and repeat the process until the banana is peeled.Once the banana is completely peeled, take a bite. Yummy! Now take a picture.Take another bite.Take another picture.Repeat this process until there’s no banana left.now you have banana mation 

blow up a balloon and tie a knot at the bottom.place the container  in an empty yogurt container. use the masking tape to tape the balloon to the container.place few tissue papers on the balloon. use the paint brush to spread the white glue and water mixture over the tissue paper and ballon.cover the entire ballon with tissue paper. Set aside to dry.to make the flashlights handle

Wrap black duct tape all the way around an empty glue stick. Be sure to cover all the yellow parts!To make a circular window for the spaceship, set the glue stick on a small piece of tinfoil and use a pencil to trace a circle.Cut around the pencil line, then fold the circle in half. Cut a semi-circle on the straight edge. Unfold the circle, then glue the little circular window onto the spaceship.Cut two wings for the spaceship out of construction paper. Tape them onto the glue stick.Tip: Glue thin stripes of tinfoil onto the spaceship for decoration.Add a cool top to your spaceship! Unscrew the cap from the top of the glue stick, then glue the top of an empty glue bottle onto the cap.Cover the spaceship top with tinfoil and black tape. To make an antenna, put a small ball of tinfoil on the top of a toothpick. Stick the toothpick into the glue bottle top and cover the toothpick with black tape.Screw the cap back onto the glue stick. Look at that amazing spaceship!To make an astronaut, unbend a paper clip and stick one end through the middle of a pencil grip. (An equal length of paperclip should be on either side of the pencil grip; these are the astronaut’s arms.) Wrap masking tape around one end of the pencil grip, then draw a face on the tape with a black marker.Now for a helmet! Wrap a thin strip of masking tape around the bottom of the astronaut’s head. Do the same to the top. Make sure you don’t cover the face! Stick a small circular tab of clear floor protector over the astronaut’s face.Get creative and the astronaut with a colourful spacesuit, antenna, or whatever you like.Put the astronaut inside the spaceship. Lower the astronaut by turning the bottom of the glue stick. Screw on the top of the spaceship.

how to make a flying fish

Bend the triangular part of a coat hanger into a big, round loop.Now bend the hook part of the coat hanger into a straight line.Wrap duct tape around the straight handle.Now it’s time for your chip bags. Cut along the crease lines to open up two jumbo chip bags. Clean the grease off the silver part with soap and water, and then scotch tape the two bags together.Turn it over so the silver side of the chip bag is facing down. Place the bottom of the wire loop onto the bottom middle edge of the wrapper.Now fold and tape the other side of the chip bag until the wire hoop is completely covered in wrapper.Now take your small chip bags and cut along the crease lines to open them up. Wash off the grease on the silver side of the bags.Cut the chip bags horizontally into one-inch strips.Now tape these strips to the inside of your wind sock at the back. Go all the way around the windsock until you have no more strips. You can add as many strips as you like!Make fish eyes for your windsock by cutting out two circles from a piece of white paper and colour in the eyeball with a black marker.Tape eyes onto the windsock with scotch tape.

how to make a water bottle waterfall

With a marker, draw a big rectangle on one side of a water bottle.Find a spot on the rectangle and poke a pencil through the plastic. When you’ve made a large enough hole to fit scissors through, cut the rectangle out.Repeat the above steps on the rest of the empty water bottles.The plunger is the stand for the waterfall. Find a spot on the plunger about five inches from the bottom. Angle the bottle downward so water can flow out of it.Clip the binder clip onto the bottle and use duct tape to attach one of the binder clip arms to the plunger handle.Place a bowl where the water will pour out.The next bottle will go above the first bottle. Make sure it’s aiming into the first bottle so the water flows from one bottle to another. Clip the bottle and duct tape it into place onto the plunger handle.Add the third bottle above the second bottle. Again, make sure it’s aiming into the second bottle. Clip the bottle and duct tape it into place. Repeat this as many times as you can until you’ve run out of room on the plunger handle.Time to test the fountain! Pour some water into the top bottle. If the water spills anywhere, just adjust the position of the bottles and try again.Once everything is working, go ahead and decorate it. You can use more recycled bottles, hangers or whatever you like!

how to make a light stick & filter

Roll the card stock into a tight tube.Use a piece of tape to hold the tube together.Cover the tube in tinfoil.Wrap electrical tape around one end to make a handle.Attach the LED lights. If it’s a strap-on light, just use the strap to attach it. If it’s a light with a magnet, tape the magnet onto the tube. Add as many lights as you want.Now let’s make a light filter. Tape the four strips of cardboard together to make a picture frame.Cover your picture frame in tinfoil to make it shiny.Turn over your frame and tape a piece of wax paper on the back.Now you can turn out the lights and watch your very own light show!Add more of these sticks to a foil-lined box and you’ve got your very own Party-in-a-Box!

how to make a monster pillowcase

Tuck the pillow into an old sweater.Fold the bottom of the sweater and at one corner grab a fistful of extra fabric and wrap an elastic around it.Do the same thing to the other corner. Now your monster has two wiggly feet.Take the arm of the sweater, tuck in the cuff and add put an elastic around it.To make fingers, grab three bunches of fabric at the end of the sweater arm and put an elastic around each finger.Now repeat these steps on the other sweater arm so that your monster has two hands with fingers.Cut six triangles out of green felt. This will make awesome monster claws. If you want you can give your pillow monster toenails, too!All you need to do to attach a claw is slip it under the elastic on a finger so that it holds in place.At the top of the sweater push the pillow down, bunch up the fabric and wrap an elastic around it.Bunch together some coloured yarn, and hold the yarn in place by pushing it through the elastic.Now, cut out circles from felt for the monster eyes and glue them onto the monster using white glue.Cut out a monster mouth (and maybe a tooth!) out of felt and glue it on.Wow! A soft, cuddly monster to help chase away bad dreams!

how to make an orange lampshade

Prepare your dried fruit Ask a parent to slice your fruit about 1/4 inch thick. Place the fruit slices on a plate and leave them to dry in the sun for at least six hours.Place two long sticks on the table and place the two short sticks across the long sticks.Use pieces of twine to tie the short sticks to the long sticks.Repeat the instructions above to make an identical second frame.
Place four clumps of modelling clay on the table and press the frame sticks into the clay so they are standing up and don’t move around as you work.Connect the two frames by placing the four leftover short sticks to the open sides. Use the twine to tie each stick into place.Now you should have a box-shape! Remove the clay. The stick structure will now stand on its own.Tie a really long piece of twine to the top corner of the structure, and zig zag it all the way down one side to create a string wall. Don’t forget to secure it tightly when you reach the bottom corner.Zigzag the string on the remaining three sides.Fruit time! Take an orange slice and poke a twist tie through the orange, just under the rind. Wrap the twist tie around the outer skin and twist the orange slice into place on the twine.Poke another twist tie through the bottom of the slice and secure it into place.Repeat until all four sides are covered with dried fruit!Carefully place the lampshade over a small table lamp with a low-watt or LED light bulb. Please make sure that no part of the shade is touching the bulb.

how to make an owl

 you will need:
thermacol plate
colour paints

method:

First colour the owl brown.waut till it drys.
then colour the wing blue.
after that add some eyes.
next add a nose and feet.

how to make an angel.

you will need:
a)paper
b)hands(you already have them)
c) scissors
d)pencil
e)toilet paper roll(empty)
f)glue

method:
First take the paper and then trace your hand with pencil.
Next cut the traced  hands and then glue to the empty toilet paper roll.
then with your pencil draw a face on the front.
that`s all if you want glue some decorations.

lava lamp (the best)

add one by one.you will get an lava lamp.

how to make a simple duck call

• One plastic straw from your kitchen or local fast food restaurant
• Scissors
• Lungs (don't worry you already have them)

1. Use your fingers to press on one end of the straw to flatten it - the flatter the better.
2. Cut the flattened end of the straw into a point (see below).




3. Flatten it out again real good.

4. Now take a deep breath, put the pointed end of the straw in your mouth and blow hard into the straw. If all goes well you should hear a somewhat silly sound coming from the straw. The smaller you are, the harder it may be to get a good sound - sometimes adults can get more of a sound thanks to their bigger lungs. If you still have trouble, try flattening it out some more or cutting the straw in half.

5. Don't stop there - try cutting the straw different sizes to see how the sound changes, or make another identical straw and add the pointed end of the new straw to the uncut end of the first straw (to make the first straw longer) The sound will be very different, (more like a moose call!) and you will have to blow even harder, but give it a try.

how to make plastic chicken bone

You will need :

• A jar large enough to fit a chicken bone
• A chicken bone - a leg or "drumstick" bone works best
• Vinegar

1. Have a nice chicken dinner and save a bone. Leg bones work best. 2. Rinse off the bone in running water to remove any meat from the bone.
3. Notice how hard the bone is - gently try bending it. Like our bones, chicken bones have a mineral called calcium in them to make them hard.

4.Put the bone into the jar and cover the bone with vinegar. It might be a good idea to put the lid on the jar or cover it - let it sit for 3 days

5. After 3 days remove the bone. It should feel different. Now can rinse it off and try bending it again. Is it really a rubber bone?

A jar large enough to fit a chicken bone.
A chicken bone-leg or drum stick works best.
vinegar

bend water with static electricity

• A dry plastic comb
• An indoor faucet
• A head full of clean dry hair.

1. Turn on the faucet and slowly turn down the water until you have a VERY thin stream of water flowing.

2. Take the plastic comb and brush it through your hair ten times.

3. Now slowly bring the comb close the the flowing water, (without actually touching the water) If all goes well, the stream of water should bend towards the comb! Magic you ask? Not really

how to make Colour symphony

                                          only for 5+

• A flat tray (like a cookie baking tray)
• Food coloring (at least 3 different colors)
• Whole milk - low fat milk will not work for this experiment
• Liquid soap used for washing dishes

1. Carefully pour the milk into the tray so that it just covers the bottom
2. Add about 6-8 drops of different colored food coloring onto the milk in different spots
3. Add about 5 drops of the liquid soap onto the drops of food coloring and watch the show!
4. To clean up, simply pour the colored milk down the drain. (don't drink it!)

can you make a paper clip float.

• clean dry paper clips
• tissue paper
• a bowl of water
• pencil with eraser

1. Fill the bowl with water
2. Try to make the paper clip float...not much luck, huh?
3. Tear a piece of tissue paper about half the size of a dollar bill
4. GENTLY drop the tissue flat onto the surface of the water
5. GENTLY place a dry paper clip flat onto the tissue (try not to touch the water or the tissue)
6. Use the eraser end of the pencil to carefully poke the tissue (not the paper clip) until the tissue sinks. With some luck, the tissue will sink and leave the paper clip floating!

how to blow up a balloon with yeast.

• A packet of yeast (available in the grocery store)
• A small, clean, clear, plastic soda bottle (16 oz. or smaller)
• 1 teaspoon of sugar
• Some warm water
• A small balloon

• 1. Fill the bottle up with about one inch of warm water.
  ( When yeast is cold or dry the micro organisms are resting.)
• 2. Add all of the yeast packet and gently swirl the bottle a few seconds.
  (As the yeast dissolves, it becomes active - it comes to life! Don't bother looking for movement, yeast is a microscopic fungus organism.) 
• 3. Add the sugar and swirl it around some more.
  Like people, yeast needs energy (food) to be active, so we will give it sugar. Now the yeast is "eating!"


• 4. Blow up the balloon a few times to stretch it out then place the neck of the balloon over the neck of the bottle.
• 5. Let the bottle sit in a warm place for about 20 minutes 
  If all goes well the balloon will begin to inflate!

some of the best optical illusions

Take a look at this grid:

Did you notice the small grayish dots between the black boxes. They are not part of the drawing - they were put there by your brain! Scientists call this "visual vibration." Basically it means that when you see patterns of black and white, your eye sometimes confuses the two and blends them into patterns of gray that you see here. You are seeing something that is not really there!

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This elephant is missing a leg...or is it? The artist confuses his
viewer by changing they way our brain is used to seeing things.
It seems the more you look at the elephant, the more confusing it gets. 

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Want to see the gears move?
Look at the dot and then move your head towards the screen and away from it.

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This uses visual vibrations to create a cool effect. Try moving your head
close to, and then away from the screen. The fuzzy dots appear to move.

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This simple line drawing is titled, "Mother, Father, and daughter" (Fisher, 1968)
because it contains the faces of all three people in the title.How many faces can you find?

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Look at the dots in the center. Which one is bigger?
Like many similar illusions, the dots are the same size...really!
It can be hard to tell because your eye uses the other dots to make a comparison.

---

 
Check out the spiral...except it is not a spiral, just circles.
Don't believe me? Use your finger to follow the fake spiral.
The tilt of the boxes fools your brain into believing it is a spiral.

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Hey, this is weird. It looks as though it's moving, but it's not.
The shapes confuse the eye (really the brain) into believing that they are moving.

how to make an electro- magnet.

• A large iron nail (about 3 inches)
• About 3 feet of THIN COATED copper wire
• A fresh D size battery
• Some paper clips or other small magnetic objects

• 1. Leave about 8 inches of wire loose at one end and wrap most of the rest of the wire around the nail. Try not to overlap the wires.
• 2. Cut the wire (if needed) so that there is about another 8 inches loose at the other end too.

• 3. Now remove about an inch of the plastic coating from both ends of the wire and attach the one wire to one end of a battery and the other wire to the other end of the battery. See picture below. (It is best to tape the wires to the battery - be careful though, the wire could get very hot!)


• 4. Now you have an ELECTROMAGNET! Put the point of the nail near a few paper clips and it should pick them up!
• NOTE: Making an electromagnet uses up the battery somewhat quickly which is why the battery may get warm, so disconnect the wires when you are done exploring

how to make your coins shiny

 
        * A few old (not shiny) pennies
        * 1/4 cup white vinegar
        * 1 teaspoon salt
        * Non-metal bowl 
        * Paper towels

1. Pour the vinegar into the bowl and add the salt - stir it up.
2. Put about 5 pennies into the bowl and count to 10 slowly.
3. Take out the pennies and rinse them out in some water. Admire their shininess!

how to chicken sounds in a cup.

        * A plastic drinking cup
        * Yarn or cotton string (nylon string will not work well)
        * 1 paper clip
        * Paper towel
        * A nail
        * Scissors
        * Water

1. Cut a piece of yarn about 20 inches (40 cm) long.
2. Ask an adult to use the nail to carefully punch a hold in the center of the bottom of the cup.
3. Tie one end of the yarn to the middle of the paper clip.
4. Push the other end of the yarn through the hole in the cup and pull it through as shown in the picture.
5. Get a piece of paper towel about the size of a dollar bill, then fold it once and get it damp in the water.
6. Now it's time to make some noise! Hold the cup firmly in one hand, and wrap the damp paper towel around the string near the cup. While you squeeze the string, pull down in short jerks so that the paper towel tightly slides along the string. If all goes well - you hear a chicken

how to make static tinsel levitating orb

• 1 inch (2.5 cm) wide PVC Pipe about 24 inches (60cm) long. You can also use a regular balloon if you do not have PVC pipe.
• Mylar tinsel for Christmas trees. There are many types of tinsel - you should look for the thinnest and narrowest possible. The tinsel used in the video is about 1 millimeter wide. If it is much wider than that, the orb may be too heavy to levitate.
• A head of clean, dry hair
• Scissors

 

1. Arrange 6 strands of mylar together and tie them together in a knot at one end.
2. Tie them together again about 6 inches (15cm) from the first knot.
3. Cut the loose mylar strands off just past each knot.
4. Charge the PVC pipe by rubbing it back and forth through your hair for 10 seconds.
5. Hold the mylar orb (by the knot) above the charged pipe and let it drop and touch the pipe.
6. It should repel away and start floating. If the tinsel keeps sticking to the pipe, the tinsel is probably not thin enough and you will need to try another kind of tinsel or order some from us. (You will usually have to "recharge" the pipe before each levitation.)

how to make rock candy.

• A wooden skewer (you can also use a clean wooden chopstick)
• A clothespin
• 1 cup of water
• 2-3 cups of sugar
• A tall narrow glass or jar

1. Clip the wooden skewer into the clothespin so that it hangs down inside the glass and is about 1 inch (2.5 cm) from the bottom of the glass. (as shown)
2. Remove the skewer and clothespin and put them aside for now.
3. Get a helpful adult!
4. Pour the water into a pan and bring it to boil.
5. Pour about 1/4 cup of sugar into the boiling water, stirring until it dissolves.
6. Keep adding more and more sugar, each time stirring it until it dissolves, until no more will dissolve. This will take time and patience and it will take longer for the sugar to dissolve each time.Be sure you don't give up too soon. Once no more sugar will dissolve, remove it from heat and allow it to cool for at least 20 minutes.
7. NOTE: While it is cooling, some peole like to dip half of the skewer in the sugar solution and then roll it in some sugar to help jump start the crystal growth. If you do this, be sure to let the skewer cool completely so that sugar crystals do not fall off when you place it back in the glass.
8. Have your friendly ADULT carefully pour the sugar solution into the jar almost to the top. Then submerge the skewer back into the glass making sure that it is hanging straight down the middle without touching the sides.
9. Allow the jar to fully cool and put it someplace where it will not be disturbed.
10. Now just wait. The sugar crystals will grow over the next 3-7 days.

Want colored rock candy? Add food coloring to your sugar water and make sure sure that it is pretty dark in color for the best result

how to make straw hoop plane

• A regular plastic drinking straw
• 3 X 5 inch index card or stiff paper
• Tape
• Scissors

• 1. Cut the index card or stiff paper into 3 separate pieces that measure 1 inch (2.5 cm) by 5 inches (13 cm.)
• 2. Take 2 of the pieces of paper and tape them together into a hoop as shown. Be sure to overlap the pieces about half an inch (1 cm) so that they keep a nice round shape once taped.

• 3. Use the last strip of paper to make a smaller hoop, overlapping the edges a bit like before.
• 4. Tape the paper loops to the ends of the straw as shown below. (notice that the straw is lined up on the inside of the loops)the experiment will look as shown below. 
  
  
• 5. That's it! Now hold the straw in the middle with the hoops on top and throw it in the air similar to how you might throw a dart angled slightly up. With some practice you can get it to go farther than many paper airplanes.

how to make a lava lamp. (world easiest lava lamp)

• A clean 1 liter clear soda bottle
• 3/4 cup of water
• Vegetable Oil
• Fizzing tablets (such as Alka Seltzer)
• Food coloring

1. Pour the water into the bottle.

2. Use a measuring cup or funnel to slowly pour the vegetable oil into the bottle until it's almost full. You may have to wait a few minutes for the oil and water separate.

3. Add 10 drops of food coloring to the bottle (we like red, but any color will look great.) The drops will pass through the oil and then mix with the water below. 

4. Break a seltzer tablet in half and drop the half tablet into the bottle. Watch it sink to the bottom and let the blobby greatness begin!

5. To keep the effect going, just add another tablet piece. For a true lava lamp effect, shine a flashlight through the bottom of the bottle

the lincoln high dive

• A Lincoln penny (or other small coin)
• A piece of card stock or stiff paper
• A film canister, baby food jar, or other similar size container with an mouth slightly larger than a penny
• Pencil or pen
• Scissors

1. Cut the cardstock paper into a long strip about .75 inches (2 cm) wide and form it into a hoop as shown. The paper should be stiff enough to hold the hoop shape on its own and the hoop works best when it is between 3-4 inches (8-10 cm) across.
2. For dramatic effect, fill the film canister with water and place on a level surface.
3. Place the hoop on the film canister as shown and balance the penny on the top of the hoop.
4. Time for Lincoln's big moment! Place a pencil through the center of the hoop and in one swift motion fling the hoop off to the side as pictured. If you do this correctly, the hoop will fly out of the way, and the penny will fall straight down into the canister with a splash. 10 points for Lincoln!

HOW TO MAKE A FILM CANISTER ROCKET.

• One empty 35mm plastic film canister and lid. These are getting harder to find, but stores that develop film should have some. (The white canisters work much better than the black ones do.) If you have trouble finding canisters, you can get them HERE.
• One fizzing antacid tablet (such as Alka-Seltzer - Get this from your parents)
• Water
• Safety goggles

1. Put on those safety goggles and head outside - no really, when this works, that film canister really flies! If you want to try the indoor version, do not turn the canister upside down in step 5.

2. Break the antacid tablet in half.

3. Remove the lid from the film canister and put a teaspoon (5 ml) of water into the canister.

   Do the next 2 steps quickly 

4. Drop the tablet half into the canister and snap the cap onto the canister (make sure that it snaps on tightly.)

5. Quickly put the canister on the ground CAP SIDE DOWN and STEP BACK at least 2 meters.

6. About 10 seconds later, you will hear a POP! and the film canister will launch into the air!

Caution: If it does not launch, wait at least 30 second before examining the canister. Usually the cap is not on tight enough and the build up of gas leaked out.

how to roll a can with static electricity

* An empty soda can
* blown-up balloon
* A head of hair

1. Place the can on its side on a flat smooth surface like a table or a smooth floor.

2. Rub the blown up balloon back and forth through your hair really fast.

3. Now the fun part - Hold the balloon close to the can without actually touching the can. The can will start to roll towards the balloon without you even touching it!

Try This Too: While you've got the balloon out, tear up part of a tissue into tiny pieces about 1/4 inch (.5 cm) big. Rub the balloon in your hair again and bring it close to the tissue pieces. They will be attracted to the balloon and then jump away.

This works a lot like our bending water experiment. When you rub the balloon through your hair, invisible electrons (with a negative charge) build up on the surface of the balloon. This is called static electricity, which means "non-moving electricity" The electrons have the power to pull very light objects (with a positive charge) toward them - like the soda can.

magic ketchup.

* A 1 liter plastic bottle         * Ketchup pack from a fast food restaurant         * Salt (using Kosher salt helps keep the water from becoming foggy)

Remove any labels from the bottle and fill it all the way to the top with water. Add a ketchup pack to the bottle. If the ketchup floats, you're all set - go to step 4. If the ketchup sinks in the bottle, go to step 5. For the floating ketchup pack simply screw the cap on the bottle and squeeze the sides of the bottle hard. If the ketchup sinks when you squeeze it, and floats when you release it, congratulations, you're ready to show it off. If it does not sink when you squeeze it, try a different kind of ketchup pack or try a mustard or soy sauce pack. If the ketchup pack sinks, add about 3 tablespoons (45 ml) of salt to the bottle. Cap it and shake it up until the salt dissolves. (Kosher salt will keep the water from getting too cloudy, although it will usually clear up over time if using regular table salt.) Continue adding salt, a few tablespoons at a time until the ketchup is just barely floating to the top of the bottle. Once it is consistently floating, make sure the bottle is filled to the top with water, and then cap it tightly. Now squeeze the bottle. The magic ketchup should sink when you squeeze the bottle and float up when you release it. With some practice you can get it to stop in the middle of the bottle.

how to make lava in cup.

 

* A clear drinking glass
* 1/4 cup vegetable oil
* 1 teaspoon salt
* Water
* Food coloring (optional)

1. Fill the glass about 3/4 full of water .
2. Add about 5 drops of food coloring - I like red for the lava look.
3. Slowly pour the vegetable oil into the glass. See how the oil floats on top - cool huh? It gets better.
4. Now the fun part: Sprinkle the salt on top of the oil.
5. Watch blobs of lava move up and down in your glass!
6. If you liked that, add another teaspoon of salt to keep the effect going.

So what's going on? Of course, it's not real lava but it does look a bit like a lava lamp your parents may have had. First of all, the oil floats on top of the water because it is lighter than the water. Since the salt is heavier than oil, it sinks down into the water and takes some oil with it, but then the salt dissolves and back up goes the oil! Pretty cool huh?