Endothermic and Exothermic Reactions

​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