Endo and Exothermic

_____ reactions usually feel hot!

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

____ reactions usually feel cold.

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

What instrument would you use to detect an endothermic or exothermic reaction?

• triple beam balance

• ruler

• thermometer

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The graph above is from which type of reaction?

• Endothermic reaction

• Exothermic Reaction

Tags

NGSS.HS-PS1-4

reactions absorb energy around it making the area feel 'colder.' reactions release energy to the surrounding area making the area feel 'warmer.'

• Endothermic

• Exothermic

• Isothermic

Tags

NGSS.HS-PS1-4

Endothermic reactions ​ (a)   energy and exothermic reactions ​ (b)   energy.

• store

• release

Answer explanation

Endothermic reactions absorb or take in energy from their surroundings, hence the correct answer for the first blank is 'absorb'. On the other hand, exothermic reactions release energy into their surroundings, hence the correct answer for the second blank is 'release'.

Tags

NGSS.HS-PS1-4

reactions absorb energy around it making the area feel 'colder.' reactions release energy to the surrounding area making the area feel 'warmer.'

• Endothermic

• Exothermic

• Isothermic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Some chemical reactions are ​ (a)   where the heat energy is absorbed. Other chemical reactions release heat energy are known as ​ (b)   .​

• endothermic

• exothermic

• thermal

• geothermal

Tags

NGSS.HS-PS1-4

Match the following:

• Energy is released

  (Heat goes out)

• Endothermic Reaction

• Energy is absorbed

  (Heat goes in)

• Exothermic Reaction

• A reaction that creates a new substance

• Chemical Reaction

Answer explanation

For exothermic, think exo = exit, so the heat or energy is exiting.

This happens with any flame or explosion.

For endothermic, think endo = in, so the heat or energy is going in.

This happens with any baking or cooking.

Tags

NGSS.HS-PS1-4

require(s) the addition of energy for a reaction to occur.

• Endothermic Reactions

• Exothermic Reactions

• Combustion Reactions

• Condensation

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1