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Hands on science experiments for kids

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Amy Torf from Noggin Builders talk about some fun science activities for kids.

Elephant Toothpaste

Supplies:

16 ounce plastic soda bottle, empty & clean

1/2 cup 20-volume (6% solution) hydrogen peroxide liquid

funnel

food coloring

liquid dish washing soap

1 Tbsp of dry yeast

3 Tbsp of warm water

mixing cup

Safety:

Hydrogen peroxide (H2O2) can irritate and burn the eyes and skin; do not allow direct

contact; in case of contact wash / flush with large amounts of water immediately

Directions:

Note: this project is messy! Find a place to do it where you don’t mind an overflow!

  • Put on safety glasses
  • Pour hydrogen peroxide into the bottle with funnel
  • Add food coloring into the bottle
  • Add 1-2 squirts of liquid dish soap into the bottle; swish the bottle to mix it slightly
  • In a separate mixing cup, combine the warm water and the yeast together; mix

30 seconds

  • Pour the yeast water mixture into the bottle with the funnel; quickly remove the

funnel and watch!

 

Air Cannon

Supplies:

paper cup, bucket, or other container

plastic (bag, shower liner, etc)

rubberband, tape or bungee cord

Directions:

  • Cut a hole in the closed end of your cup / bucket
  • Stretch plastic across the open end of the cup / bucket and secure with tape, rubber

band or bungee cord

  • Tap the plastic to create a burst of air from the cannon

 

Pom Pom Blaster

Supplies:

paper cup

plastic bag

pom pom

Directions:

  • Poke a small hole in the closed end of your cup; test to make sure it is a snug fit with

the pom pom

  • Tape the cup securely around the outside of the open end of the cup
  • To use – gently blow into the small hole, inflating the bag. Place the pom pom snugly

in the hole. Aim and quickly squeeze the bag to send the pom pom flying.

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