Experiment #1 – Elephant Toothpaste –
IF AN ELEPHANT BRUSHED HIS TEETH, WHAT WOULD THE TOOTHPASTE LOOK LIKE?
Safety Goggles and Gloves
Dry Active Yeast – 1 tsp
Water – 2 tbsp
Hydrogen Peroxide (3%) – ½ cup
Dish Soap – few drops
Empty 15 oz plastic bottle
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
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 –
Baby or Cooking Oil – 2/3 cup
Water - 1/3 cup
Alka Seltzer Tablets
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
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?
Zip Lock Bag
Step 1 – Fill bag halfway with water
Step 2 – Spear the bag with the pencil
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
Small Plastic Containers- 1 tbsp vinegar and food coloring
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
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.