Supplies Needed:
Half of a Lemon
Water
Spoon
Bowl
Cotton Swab
White Paper
Light Bulb
#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)
Rubbing Alcohol
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.
Paper
Pencil
Tape
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!
Diet Coke
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!