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Experiment #1 – Elephant Toothpaste –

IF AN ELEPHANT BRUSHED HIS TEETH, WHAT WOULD THE TOOTHPASTE LOOK LIKE?

Materials:

Safety Goggles and Gloves

Dry Active Yeast – 1 tsp

Water – 2 tbsp

Hydrogen Peroxide (3%) – ½ cup

Dish Soap – few drops

Funnel

Empty 15 oz plastic bottle

Bowl

Baking Pan

Food Coloring

Steps:

Step 1 – Wear safety gear

Step 2 – Mix yeast with warm water well

Step 3 – In the bottle, mix hydrogen peroxide, food coloring, dish soap. Swirl

Step 4 – Add the yeast to the mixture

Result:

Elephant toothpaste is a foamy substance caused by the breaking down of the hydrogen peroxide with yeast (aka potassium iodide) and warm water as the catalyst (aka the speed agent). The stronger the hydrogen peroxide, the faster and more explosive the reaction.

Experiment #2 - Lava Lamp –

Materials:

Jars (4)

Baby or Cooking Oil – 2/3 cup

Water - 1/3 cup

Alka Seltzer Tablets

Food Coloring

Steps:

Step 1: Fill your cup 2/3 cup with oil

Step 2: Fill the rest with water

Step 3: Add a few drops of food coloring

Step 4: Drop in alka seltzer

Result:

Liquids are made up of different atoms and molecules. If the molecules are more tightly packed, they are heavier. Thus, liquids have different thicknesses or viscosities. The oil and the water stay separated because they weigh differently; water is heavier than oil.

The chemical reaction is due to the alka seltzer tablet and water combining to create a gas called CO2 (aka the bubbles). The bubbles carry the colored water to the top of the oil where they pop and the water falls back down, creating the lava effect.

Experiment #3: Leak Proof Bag

WHAT WOULD HAPPEN IF WE PUSH ONE OF THESE PENCILS THRU THE BAG OF WATER?

Materials:

Sharp Pencils

Zip Lock Bag

Water

Steps:

Step 1 – Fill bag halfway with water

Step 2 – Spear the bag with the pencil

Results:

The zip loc bag is made of a polymer or plastic called low-density polyethylene. Its durable, lightweight, and super flexible, like spaghetti. The tip of the pencil pushes apart the strands of spaghetti, and a temporary seal is formed around the pencil so no water escapes. But if you remove it, TADA.

Experiment #4: Witch’s Brew

Materials:

Baking Soda

Food Coloring

Glitter

Dishsoap

Vinegar

Glass Jar

Small Plastic Containers- 1 tbsp vinegar and food coloring

Tray

Steps:

Step 1 – Fill the jar halfway with vinegar

Step 2 – Add a few drops of food coloring, glitter, and dish soap and stir

Step 3 – Add 1 tsp of baking soda and stir – FOAM

Step 4 – To change colors, add colored vinegar in the center

Step 5 – To speed up reaction, and baking soda

Results:

Chemical reactions occur by mixing different materials.

-The soap mixed with the vinegar and baking soda cause FOAM, not fizz.

-The colored vinegar helps to change the color of the foam.

-The baking soda helps to speed up the reaction.

-And stirring, makes everything mix together faster so it moves faster.