Half of a Lemon
#1: Squeeze some lemon juice into a bowl and add a few drops of water. Mix the water and lemon juice
#2: Dip the cotton swap in the juice mixure and write a message on the white paper
#3: When your message dries, hold the white paper up to a light bulb that’s on to reveal the message
Plastic Bottle (soda or water)
Clear Straw (plastic)
Clay or Playdough
#1: Fill half the bottle with rubbing alcohol
#2: Fill the rest of the bottle with water
#3: Add a few drops of food coloring and shake the bottle to mix up the color
#4: Place the straw in the bottle
#5: Place the clay around the rim of the bottle to hold the straw about ¼ inch from the bottom of the bottle.
#6: You are now ready to use your thermometer. You can place it in cold and warm places to see the liquid rise and lower on the straw.
Hand Handout: Right_hand.pdf (135.57 kb)
Fingerprint Handout: fingerprints.jpg (118.30 kb)
#1: Take a pencil and scribble on a piece of paper until you have a nice big black mark.
#2: Then rub your index finger in the mark. Your index finger is the one next to your thumb.
#3: Now get some tape. The best tape to use is called transparent tape or utility tape. Put a piece of it over your finger, press down, and pull it off.
#4: Pull the tape off and place it on the handout of your hand. Now you can see your fingerprint.
#6: Compare your fingerprints to the handout to see what type of fingerprint you have.
What kind of fingerprints do you have? Did you enjoy this science craft? Leave us a comment and let us know!
Pack of Mentos
#1: Find a good place to do this experiment. It needs to be a place where Diet Coke can get everywhere. Outside in the grass is best!
#2: Place the Diet Coke on a flat surface and remove the cap
#3: Unwrap about half of the pack of mentos
#4: Drop the half of pack of mentos into the Diet Coke at the same time then run!
#5: You should see a huge geyser of Diet Coke!
Sink with faucet
Plastic Comb or Balloon
#1: Turn on the faucet so a small stream of water is flowing.
#2: Run the comb through long dry hair or on a sweater several times until the comb is electrically charged
#3: Slowly bring the comb towards the water and watch as the water bends!
Did everybody think you were magical? Leave us a comment and let us know!
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