Science Activities Page
(From the book you will get from me at the end of 4th grade.)
CRUSH WITH AIR
You will need:
ice, funnel, hot and cold water, plastic soda bottle, bowl
1. Stand the bottle upright in a bowl. Pour the hot water into it and leave it for a short time.
2. Screw the top on the bottle. Lay the bottle in the bowl and pour ice and cold water over it. Then stand it up.
3. The bottle Collapses! As the warm air inside the bottle cools, it exerts less pressure. The pressure of the air outside is stronger and crushes the bottle.
SEAL WITH AIR
Thin flat card, glass with no chips on the edge, water
1. Hold the glass over the sink or a bucket. Carefully pour some water into the glass.
2. Place the card on the glass. Hold it down so the card touches the rim all the way around.
3. Still holding the card, turn the glass upside down. Let go of the card. The water stays in the glass!
MAKE A VOLCANO ERUPT
Large baking dish or tray, vinegar, small plastic bottle, small plastic or glass bottle. baking soda, sand and gravel, funnel, red food coloring
1. Add red food coloring to bottle and then add the vinegar.
2. Use the funnel and fill the other bottle half full of baking soda. Then stand the bottle upright in the tray or dish.
3. Pile gravel and then sand around the bottle of baking soda to make it look like a volcano. Make sure you cover the entire bottle except the top.
4. Quickly pour the red vinegar into the bottle of baking soda. Whalah! Your volcano has erupted.
GET A JET GOING
string or thread, tape, balloon, tire pump, drinking straw.
1. Feed the thread or string through the straw. It must move easily.
2. Stretch the thread across a room. Stick two pieces of tape on both ends of the straw so that they kind of hang down. You will later tape the balloon to the straw using these pieces of tape. Make sure your string is tight or this will not work.
3. Pump up the balloon, hold the end and tape the straw to the side of the balloon so that the open end is to the left.
4. Let go of the balloon. It rushes along the thread at high speed.
GROW A STALACTITE
Short length of yarn, paper clips, pitcher of warm water, dish, spoon, two jars, baking soda
1. Fill both the jars with warm water. Add baking soda and stir until no more dissolves.
2. Attach paper clips to the ends of the yarn. Place the ends in the jars.
3. Place a plate between the jars to catch the drips. Leave the jars for several days. A white stalactite grows down from the yarn. A stalagmite grows up from the plate.
A TWO COLORED DRINKING FLOWER
two glasses, two different food colors, a fresh white flower, scissors
1. Pour a little food coloring into each glass. Then add some water.
2. Trim the end of the stem off. Then cut the stem up the middle about half way (so it looks like you have a flower with two stems).
3. Put the two glasses next to each other and put half of the stem in one and the other half of the stem in the other glass.
4. Leave them overnight. You will have a two colored flower in the morning.
MAKE YOUR OWN ICE CREAM
cream, ice cubes, dish towel, chocolate or strawberry milk powder (Hershey or Nestle Quick), salt, tablespoon, glass, milk, large bowl
1. Mix one tablespoon of chocolate, two spoons of milk, and one spoon of cream in the glass.
2. Put some ice cubes in the bowl and sprinkle a lot of salt over them.
3. Place the glass of ice-cream mixture in the large bowl, on top of the salted ice cubes.
4. Build up more layers of ice cubes and salt around the glass.
5. Place the dish towel over the bowl. Leave the ice-cream mixture to set for an hour. Stir it every few minutes. When its thick enough, enjoy your ice-cream.
DISCOVER HIDDEN COLORS
dropper, food coloring, paper clips, coffee filters cut into strips, paper clips, small jars, narrow rod (dowel)
1. In each jar, make a different mixture of inks and food coloring.
2. Fasten the strips of coffee filter to the dowel using the paper clips. Space the strips equally on the rod.
3. Place a drop of mixture from jar number one on strip number one, and continue until you have used all your jars or all of the strips on your rod.
4. Clean out the jars, then pour a little clear water into each one. Lower the paper strips into the jars so that the ends just touch the water. The colors on each strip move up and separate out into the different colors you used to make each mixture.
WRITE IN INVISIBLE INK
Iodine, small jar, dropper, small bowl, brush, lemon, white paper
1. Squeeze some lemon juice into the bowl.
2. Put some water into the jar. Ask an adult to add a little iodine.
3. Use the brush to write your message in lemon juice on the paper. Let the lemon juice dry.
4. Brush the paper with the water and iodine mixture to read the secret message.
PRINT PRETTY PATTERNED PAPER
small disposable plastic bowls or Styrofoam plates, linseed oil, thick white paper, baking dish of water, paintbrush, poster paints.
1. Put some poster paints in your bowls-keep your colors separate. You dont need a lot of paint-it depends on how many pieces of paper you want to decorate.
2. Mix a little bit of linseed oil with each color.
3. Put one color from the palette on the brush and gently add the paint to the water.
4. Add another color. Swirl the colors to make a pattern.
5. Gently lay a sheet of paper on the water, so that it lies on the surface.
6. Carefully peel the paper away from the water. Lift it out and lay on a flat surface.
7. Let the paper dry. Use the paper to make a card, stationary, or wrapping paper. Use the paper to make a book cover.
BEND SOME WATER
balloon, water faucet, and something woolen like a sweater or blanket
1. Blow up the balloon and tie a knot in the neck of the balloon.
2. To give static electricity to the balloon, rub it on your woolen item.
3. Turn your faucet on and hold the balloon near the running water. The water bends towards the balloon.
JUMP WITH ELECTRICITY
pen, scissors, balloon, stiff paper, and something woolen
1. Draw some small people shapes on your paper and cut them out.
2. Place the paper people on the tabletop or counter.
3. Blow up your balloon until it is quite big. Tie a knot in the end.
4. Rub the balloon on your woolen item.
5. Hold the balloon about 4 inches above the people. They will jump up and down.
BUILD A TABLE SKIMMER
balloon, cut-off top from a plastic bottle with the lid still on
1. Ask an adult to help you make a small hole in the bottle cap. Then blow up the balloon.
2. The cut off edge of the bottle must lay flat on the table. Pinch the neck of the balloon so that no air escapes. Stretch the neck of the balloon over the bottle cap. You may need to ask for help from a friend.
3. Release the neck of the balloon. Push the bottle top gently. It glides over the table.
4. Have a friend make a table skimmer too. You can have races.
1/2 cup cornstarch, 1-2 Tbl. water, 2 drops of green food coloring, ziploc, wax paper, spoon, popsicle stick.
1. Mix the cornstarch, the water, and food coloring in a small bowl.
2. Too thick? Add more water. Too runny? Add more cornstarch.
3. Oobleck should pour easily, but still be thick enough to roll into a ball.
4. Do not play with Oobleck on or near carpet. Always play outside or in the kitchen on the wax paper.
5. Store in the ziploc.MAKING A REPLACEMENT FOSSIL(CAST)
plaster of paris, water, disposable mixing dishes, plastic spoons, milk carton or juice carton, modeling clay, baby powder, various objects
1. Cut the top off of the carton, wash and dry too.
2. Smush the clay into the bottom of the carton and sprinkle the top of the clay with baby powder (lightly).
3. Press an object down into the clay until you get a good impression. REMOVE the object from the clay.
4. Mix the plaster and the water. (Always twice as much water as plaster.)
5. Pour the plaster into the carton and tap the sides to get rid of air bubbles.
6. Leave the plaster to dry overnight and then peel away the milk carton and the clay. Whalah! A replacement fossil.
7. You can use the clay over and over again.
FLOATING PAPER CLIP
paper clips, water, glasses (real glass, plastic wont work)
1. Fill a glass of water until a meniscus (bulge) forms on top of the glass.
2. Do the following as one smooth motion: gingerly set a paper clip at the glasss edge, and push it gently over the surface toward the center. If you are careful, the paper clip will float on the surface of the water as the molecules link.
3. Want a challenge? Try with different liquids and different objects.
TOILET PAPER CANNON (should be done outdoors!)
test tube, stopper, 1 sheet of toilet paper, vinegar, baking soda, and measuring spoons.
1. Sprinkle 1 tsp. baking soda in the center of the square of toilet tissue and fold the paper about six times so that it fits inside the mouth of the test tube (but dont put it there yet).
2. Fill the test tube about half full of vinegar and wedge the wad of toilet paper at the top of the test tube, and insert the stopper.
3. Facing away from people or anything that could get hit, shake the test tube.
4. Your toilet paper cannon should shoot the stopper.
5. Have contests with your friends to see who can shoot theirs the furthest. Or, measure your own distances and see if you can get any better.
A WEB TO KEEP
piece of plastic (clear report cover), smooth sheet of black cardboard, clear glue that dries without a shine, tape, scissors
1. Find an abandoned spider web.
2. Cover the sheet of cardboard with a thin coat of glue.
3. Place the card gently under the web so the web sticks to the glue. Cut the side threads of the web with scissors.
4. When the glue dries, cover the cardboard with the clear plastic and tape the sides.
5. Can you think of anything else you could save this way?TAKING FINGERPRINTS
baby powder or talcum powder, soft feather, scotch tape, black construction paper, patience
1. Press a fingertip to a dark shiny surface--a table top or sunglass lens work well.
2. Lightly sprinkle the powder over the fingerprint.
3. Gently brush the powder with the feather so that the powder sticks to the print.
4. Save the print by covering it with the scotch tape. The print will stick to the tape.
5. Stick the tape with the print onto a sheet of black construction paper.
6. How many different fingerprints can you collect?
several handfuls of freshly picked grass, scissors, empty soup can, water, wooden spoon, clear glass, paintbrush, white paper
1. Cut the grass into small pieces and stuff it into the soup can. Add a little water and start mashing the grass with the wooden spoon.
2. Mash until the water turns green. This is your ink.
3. Darker? Add more grass. Lighter? Add more water.
4. Use your ink to paint with on the white paper.
5. If you want other colors, try mashing up blueberries, dandelion flowers, or red beets.
6. Can you think of anything else that would make good ink?SOAP POWER BOAT
aluminum foil, dish washing liquid, a large dishpan or bucket fill with about an inch of water.
1. Shape a small boat out of aluminum foil. A triangular shape works especially well.
2. Squirt a blob of dish washing liquid onto the outside of the boats back end. Make sure that the blob is towards the bottom part of the boat.
3. Put your boat gently into the water (the blob of soap must make contact with the water).
4. Can you figure out how to make your boat take a second trip?
5. Race your friends. Does the amount of soap change your speed? How about the shape of the boat?
egg beater, hot water, rolling pin, mixing bowl, newspaper, 3 large sheets of tissue paper, liquid laundry starch, shallow baking dish, piece of screening (9x12"), blotting paper (paper towels work well)
1. Tear the tissue paper into small pieces and place them in the mixing bowl. Add hot water and laundry starch (enough to make it soupy). Beat the mixture with the egg beater until everything is pulpy.
2. Place the screen in the baking dish so that the ends stick out.
3. Pour the pulpy mixture into the dish, making sure you cover all of the screen as evenly as possible.
4. Let the water drain.
5. Place the paper towels on top of the stack of newspaper. Place the screen on top of this and place more paper towels on top of the screen.
6. Use the rolling pin to press out the water. Change the newspaper and paper towel until no more water runs out.
7. Let your paper dry on the screen. When it is completely dry you can carefully remove it.
8. Use your paper to make someone a pretty card, a bookmark, a picture frame, or a small sign.
9. When you get really good, you can use different colored tissue paper. You can also add small flat objects to the tissue paper solution. I like to add that confetti you get at the card store that comes in different shapes.
If you want to add a dried flower or something like that, press out your paper, and then put the object on top of the paper
and press it down good. Let your paper dry as usual.RACING DROPS
wax paper, water, a spoon, a paper punch, a watch
1. Cut a sheet of wax paper about 12 inches by 14 inches.
2. With the handle of the spoon, draw out some maze lines.
3. Punch some hole traps for the water drops.
4. Spoon a drop of water onto the starting place.
5. Pick up the maze and send the drop rolling along the maze. Move it along until it reaches the center.
6. Challenge a friend to a water drop race, using the watch to keep track of your times.
GREAT UPHILL WATER RACE
paper samples (paper towels, stationary, napkins, tissue, cards, construction, newspaper), a glass, water, a pen, a water soluble marker
1. Cut a race strip from each sample of paper, 1 inch by 6 inches long.
2. Give each strip a name or number.
3. With the marker, mark a starting line and a finish line on the cup. Starting line 2 inches from the bottom, and the finish line, 3 inches from the top.
4. Set up the race. Put the strips into the glass. Fold the edges over the top of the glass to balance them.
5. Look over the contestants in the glass. Predict which one you think will let water crawl up to the finish line first. Pick your bet for second and third. Write down your predictions.
6. To start the race, pour water into the glass up to the starting line.
7. Wait for the winner to cross the finish line.
a flat wet surface (can be a tv tray), bubble soap, straw
1. Blow your bubbles on the wet table.2. Can you make pryamids, or pictures with your bubbles? 3. Can you put one bubble inside the other?
TWO EYES ARE BETTER THAN ONE
a cup, a penny, two people
1. Put the cup on a table and stand about 9 feet away.
2. Have your friend stand an arms length away from the cup, with the penny held out in front of them over the cup.
3. You cover one eye, and give your friend directions on where to move their hand so that it is centered over the cup.
4. Your friend drops the penny and sees how good your directions are. Are you a bad shot?
5. Your eyes see things at different angles and when you cover one up, the other one cant see things 3-dimensionally; it only sees things 2-dimensionally. Therefore, you cant really judge where the penny is over the cup.
SOUNDS LIKE FUN
2 glasses about the same size and shape, a pencil, water, a piece of fine wire long enough to extend beyond the rim of one of the glasses (when its laid flat on the edge).
1. Half fill the two glasses.
2. Tap the first glass with the pencil. Youll hear a musical note. Try to produce the same sound on the second glass.
3. Set the two glasses about 4 inches apart and lay the fine wire across the top of the glass farthest from you.
4. Now tap the glass closest to you with the pencil and youll see the wire on the other one move slightly. You have just seen sound on the move.
5. How far apart can the glasses be before the wire stops vibrating?
a pen and paper, glue, some stiff cardboard, scissors, string
1. Trace the circles illustrated and their drawings onto a piece of paper. Be sure to mark in the dots and the stars.
2. Cut out the two circles and two cardboard circles the same size.
3. Glue the paper circles on opposite sides of the cardboard disk. Make sure that the stars are opposite each other.
4. Carefully poke tiny holes where the dots appear and tie a loop of string through each hole. (Each side has a loop tied through the hole).
5. Twirl the disks by first twirling the string. As you twirl, watch the bird and the cage. Like magic, the bird will appear inside the cage.Send me some e-mail--I want to hear from you!
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