Science Storytime: Reactions & Explosions

Science Storytime: Reactions & Explosions

(Summer 2014)

Topics: Science, chemistry

Place: Fayetteville Free Library

Date: Wednesday, 7/9 from 9:30-10:30am

Books:

Experiments:

  • Dry Ice (dry ice, warm water, dish soap)
  • Elephant Toothpaste
  • Vinegar/Baking Soda/Balloon
  • Fizzy Colors

The Plan: 

Sing: Hello Song

DSC_0013Experiment 1: Dry Ice

First, I asked the kids to raise their  hands if they’d heard of dry ice! Then I asked if anyone could tell me what it is or why it’s dry? We talked about how dry ice is VERY cold. So cold that it would burn your bare skin, which is why I wore gloves and used an ice cream scoop to handle it. Dry ice is DRY because it doesn’t melt, it sublimates or turns straight to a gas. Then I asked the kids to think like scientists! Scientists try to predict what will happen before they test it out. I asked them what they thought would happen if we added warm water to the dry ice? Then, what will happen if we add dish soap? (The ice sublimates to a harmless gas when water is added, and it bubbles with an additional squirt of dish soap!)

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Transition Rhyme: Hands on Shoulders

Hands on shoulders, hands on knees,

Hands behind you if you please.

Touch your shoulders, now your nose,

Now your chin and now your toes.

Hands up high in the air,

Down at your sides and touch your hair.

Hands up high as before,

Now clap your hands–one, two, three, four.

 

Read: The Secret Science Project that Almost Ate the School by Judy Sierra

Experiment 2: Elephant Toothpaste

  1. Set a soda pop bottle in the middle of a pan to catch the toothpaste.
  2. Mix these in a separate container and swirl together for a minute.
  •  2 Tablespoons warm water
  •  1 teaspoon yeast
  1. Mix these in your soda pop bottle:
  •  1/2 cup 6% hydrogen peroxide. 
  • 4-5 drops food coloring
  •  squirt of dish soap

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Transition Rhyme: Dance Your Fingers

Dance your fingers up and dance your fingers down

Dance them to the side and dance them all around

Dance them on your shoulders,

Dance them on your head

Dance them on your tummy,

And put them to Bed!

Read: 11 Experiments that Failed

Experiment 3: Vinegar Balloon

Can you blow up a balloon with a chemical reaction?

  1. Use a small measuring spoon to put baking soda inside a balloon.
  2. Attach the balloon to a small mouthed bottle with vinegar inside.
  3. Lift the balloon and shake the baking soda into the vinegar and watch the magic!

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Interactive Experiment (4): Fizzy Colors

  •  A container (something see-through works best)
  • White vinegar
  • Food coloring
  • Dish soap
  • Baking Soda

For this last experiment, each children got to participate. I had them gather around three different tables.  I gave each child a cup of white vinegar and then helped them to add food coloring to the plastic cups. Then each kid got to add a spoonful of baking soda to the mixture, and see what happens! It is safe to touch the resulting mixture.

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