I WONDER - Do Chemical Reaction Affect Energy?

The video explains exothermic and endothermic reactions. Exothermic reactions, like fireworks and burning wood, release energy as light and heat. In contrast, endothermic reactions require energy input, such as photosynthesis, where plants use sunlight to convert carbon dioxide and water into glucose and oxygen. The video uses an analogy comparing exothermic reactions to exciting parties and endothermic reactions to quiet gatherings needing a nudge.

Which of the following is an example of an exothermic reaction?

• Burning wood

• Evaporating water

• Melting ice

• Photosynthesis

What is required for an endothermic reaction to occur?

• Formation of water

• Production of light

• Absorption of energy

• Release of heat

In photosynthesis, what do plants convert using sunlight?

• Oxygen and glucose into carbon dioxide and water

• Carbon dioxide and water into glucose and oxygen

• Glucose and oxygen into carbon dioxide and water

• Carbon dioxide and oxygen into glucose and water

How are exothermic reactions described in the video?

• As a big, exciting party

• As a slow process

• As a quiet gathering

• As a calm event

What analogy is used to describe endothermic reactions?

• A loud concert

• A quiet gathering needing a nudge

• A fast-paced race

• A big, exciting party