Elephant Toothpaste Experiment Concepts

The video demonstrates a classic chemistry experiment known as 'elephant toothpaste.' The presenter explains the materials needed, including hydrogen peroxide, potassium iodide, and food coloring. The experiment involves mixing these ingredients to create a foamy reaction. The video also explains the chemical reaction, highlighting the role of potassium iodide as a catalyst that accelerates the decomposition of hydrogen peroxide into water and oxygen. The foam is created by the released oxygen mixing with soap. The video concludes with a brief mention of additional resources for further exploration of the experiment.

What is the name of the experiment demonstrated in the video?

• Volcano Eruption

• Elephant Toothpaste

• Baking Soda and Vinegar

• Lava Lamp

Why does the presenter wear gloves during the experiment?

• To avoid staining hands with food coloring

• To protect hands from irritation caused by hydrogen peroxide

• To keep hands clean from soap

• To handle the potassium iodide safely

Which of the following is NOT mentioned as a material used in the experiment?

• Food coloring

• Hydrogen peroxide

• Potassium iodide

• Baking soda

What is the first step in the procedure of the experiment?

• Adding soap to the graduated cylinder

• Adding food coloring

• Pouring hydrogen peroxide into the graduated cylinder

• Mixing potassium iodide

What is the role of potassium iodide in the experiment?

• It is a catalyst that speeds up the reaction

• It acts as a soap

• It neutralizes the hydrogen peroxide

• It provides color to the foam

What happens when potassium iodide is added to hydrogen peroxide?

• It changes color

• It evaporates

• It releases oxygen bubbles

• It solidifies

What is the chemical formula of hydrogen peroxide?

• H2

• O2

• H2O2

• H2O

What does hydrogen peroxide decompose into?

• Oxygen and carbon dioxide

• Water and hydrogen

• Hydrogen and oxygen

• Water and oxygen

Why is the experiment called 'Elephant Toothpaste'?

• Because the foam looks like toothpaste coming out of a tube

• Because it is used to clean elephant's teeth

• Because it uses toothpaste

• Because it has a minty smell

What is the purpose of adding food coloring in the experiment?

• To speed up the reaction

• To make the foam colorful

• To neutralize the hydrogen peroxide

• To act as a catalyst