Untitled LessonUnderstanding Exotermic and Endotermic Reaction

Open Ended

Why do you think exothermic reactions are important in our daily lives?

Multiple Choice

Which of the following is a real-world example of an exothermic reaction?

• Combustion of gasoline in a car engine

• Photosynthesis in plants

• Melting of ice

• Evaporation of water

Multiple Select

Which characteristics are true for endothermic reactions?

• Temperature decreases

• Energy is absorbed from surroundings

• Temperature increases

• Energy is released to surroundings

Multiple Choice

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

• Photosynthesis

• Burning wood

• Rusting iron

• Condensation of steam

Open Ended

Compare and contrast exothermic and endothermic processes at the molecular level. Provide examples of each.

Fill in the Blank

Cold packs used for sports injuries contain ___ nitrate as the active chemical.

Multiple Choice

During an experimental investigation, which step involves drawing conclusions about energy transfer patterns?

• Plan

• Observe

• Record

• Analyze

Open Ended

How can understanding thermal reactions contribute to solving real-world energy challenges and improving healthcare technologies?

Open Ended

How do exothermic reactions impact our daily lives and the environment?

Multiple Choice

What are some real-world applications of exothermic reactions?

• Fueling cars and warming homes

• Cooling packs for injuries

• Photosynthesis in plants

• Melting ice with salt