Endothermic and Exothermic Reactions

Presentation

•

Science

•

8th Grade

•

Medium

Samantha Ash

Used 3+ times

FREE Resource

4 Slides • 18 Questions

Record on page 133

Poll

Exothermic reactions give out heat energy to the surroundings?

True

False

Record on page 133

Multiple Choice

Endothermic means energy _______.

absorbed

released

Multiple Choice

In an endothermic reaction, heat is ...

taken in

given out

These are exothermic reactions

combustion [burning]
rusting
freezing/ condensing water
nuclear fission
water and acid reaction

Record on page 133

Multiple Choice

In an exothermic reaction, heat is ...

taken in

given out

Multiple Choice

What is an exothermic reaction?

heat energy is given out to the surroundings

heat energy is taken into the substance

no energy is given out

Multiple Select

An example of an exothermic reaction is? Pick as many which you think apply?

rusting nail

neutralisation

acid and alkali

burning magnesium

combustion

Poll

An example of an exothermic reaction is?

rusting nail

neutralisation

acid and alkali

burning magnesium

combustion

Multiple Choice

____ reactions usually feel cold.

endothermic

exothermic

These are endothermic reactions

photosynthesis
dissolving salt in water.
frying eggs
baking bread

Record on page 133

Multiple Select

What happens to the temperature in an exothermic reaction?

it stays the same

the temperature decreases

the temperature increases

Multiple Choice

Which of the following process is exothermic?

Candle melting

A puddle evaporating

Dry ice (solid carbon dioxide) subliming to form gaseous carbon dioxide

Water freezing to form ice

Multiple Choice

What is an example of exothermic?

firework

ice pack

coal

wood

Multiple Choice

What type of reaction occurs in a hand warmer?

exothermic

endothermic

Multiple Choice

What type of reaction is shown in the photo?

Exothermic

Isothermic

Endothermic

None of the above

Multiple Choice

Is photosnythesis an Exothermic or an Endothermic reaction?

Endothermic

Exothermic

Multiple Choice

In an exothermic reaction, heat is ...

taken in

given out

Multiple Choice

Baking bread and cooking an egg are examples of....?

Endothermic processes

Exothermic processess

None of these

Multiple Choice

If a chemical reaction is EXOTHERMIC, the temperature would....

Stay the same

Increase

Decrease

Multiple Choice

A student mixed two chemicals to allow them to react. The temperature before the reaction was 25 ° C. The temperature after the reaction was 18° C. Which of the following is true?

The temperature changed

It is an endothermic reaction

It is an exothermic reaction

Record on page 133

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