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Endothermic and Exothermic Processes Worksheet

Explore endothermic and exothermic reactions, understanding energy changes, heat transfer, and real-world examples in chemistry.

Grade 9 Science ChemistryEndothermic and Exothermic Processes
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Multiple ChoiceTrue / FalseFill in the BlanksShort AnswerWord Bank

Standards

HS-PS1-4HS-PS3-2

Topics

chemistryendothermicexothermicenergyreactions
7 sections · Free to use · Printable
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Endothermic and Exothermic Processes

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Read each question carefully and answer to the best of your ability. This worksheet covers endothermic and exothermic processes.

1. Which of the following describes an endothermic process?

a

Releases heat into the surroundings

b

Absorbs heat from the surroundings

c

Maintains a constant temperature

d

Involves no energy change

2. An example of an exothermic reaction is:

a

Melting ice

b

Photosynthesis

c

Combustion of fuel

d

Evaporation of water

1. In an exothermic reaction, the products have higher energy than the reactants.

T

True

F

False

2. An endothermic process feels cold to the touch because it absorbs heat from its surroundings.

T

True

F

False

1. Reactions that release energy in the form of heat are called   reactions.

2. When a chemical process absorbs heat from its surroundings, the temperature of the surroundings will  .

1. Describe the main difference between an endothermic and an exothermic process in terms of energy transfer.

2. Provide two real-world examples of endothermic processes and explain why they are considered endothermic.

Use the words below to complete the sentences.

heat
absorbs
releases
temperature

1. An endothermic reaction   energy from its surroundings.

2. An exothermic reaction   energy, often as  , to its surroundings, causing a rise in  .