Endothermic Reactions

Endothermic Reaction
Lesson 2
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Slide 1: Slide
ScienceSecondary EducationAge 12,13

This lesson contains 23 slides, with interactive quizzes and text slides.

Items in this lesson

Endothermic Reaction
Lesson 2

Slide 1 - Slide

How do you feel today?
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Slide 2 - Poll

Recall of the previous lesson
  • Burning only happens in the presence of  a _______ , ________ gas, and heat or __________ energy.
  • The other term for burning is _____.
  •  Chemical energy stored in the fuel changes to heat and light during burning.

Slide 3 - Slide

Recall of the previous lesson
  • Burning only happens in the presence of  a _______ , ________ gas, and heat or __________ energy.
  • The other term for burning is _____.
  •  ___________ energy stored in the fuel changes to heat and light during burning.
fuel

Slide 4 - Slide

Recall of the previous lesson
  • Burning only happens in the presence of  a _______ , ________ gas, and heat or __________ energy.
  • The other term for burning is _____.
  •  Chemical energy stored in the fuel changes to heat and light during burning.
fuel
oxygen

Slide 5 - Slide

Recall of the previous lesson
  • Burning only happens in the presence of  a _______ , ________ gas, and heat or __________ energy.
  • The other term for burning is _____.
fuel
oxygen
thermal

Slide 6 - Slide

Recall of the previous lesson
  • Burning only happens in the presence of  a _______ , ________ gas, and heat or __________ energy.
  • The other term for burning is _____.
  •  __________ energy stored in the fuel changes to heat and light during burning.
fuel
oxygen
thermal
combustion

Slide 7 - Slide

Recall of the previous lesson
  • Burning only happens in the presence of  a _______ , ________ gas, and heat or __________ energy.
  • The other term for burning is _____.
  •  __________ energy stored in the fuel changes to heat and light during burning.
fuel
oxygen
thermal
combustion
Chemical

Slide 8 - Slide

Recall of the previous lesson
  • Heat is released to the ___________ in an exothermic reaction.
  • Temperature _____________ in exothermic reactions. (like from 20oC to 25oC). 

Slide 9 - Slide

Recall of the previous lesson
  • Heat is released to the ___________ in an exothermic reaction.
  • Temperature _____________ in exothermic reactions. (like from 20oC to 25oC). 
surroundings

Slide 10 - Slide

Recall of the previous lesson
  • Heat is released to the ___________ in an exothermic reaction.
  • Temperature _____________ in exothermic reactions. (like from 20oC to 25oC). 
surroundings
increases

Slide 11 - Slide

Types of Chemical Reactions
  • exothermic =            
  • endothermic = 

Slide 12 - Slide

Types of Chemical Reactions
  • exothermic =            
  • endothermic = 
exit / release of heat
heat enters or is absorbed for the reaction to happen.

Slide 13 - Slide

What do we need for this ice to get melted?

Slide 14 - Slide

Endothermic Reaction
  • a chemical reaction that absorbs heat or thermal energy from the surroundings
  • thermal energy is changed to chemical energy stored in the chemical bonds

Slide 15 - Slide

Slide 16 - Slide

Endothermic
Exothermic

Slide 17 - Drag question

Endothermic process
Exothermic reaction

Slide 18 - Slide

Slide 19 - Link

Endothermic process vs 
Endothermic reaction
  • endothermic process - no reaction has taken place (dissolving) ; NO NEW products are formed.
  • endothermic reaction - reaction has taken place ; NEW PRODUCTS are formed. 

Slide 20 - Slide

page 271 , LB
Activity

Slide 21 - Slide

What 2 things have your learned today?

Slide 22 - Open question

Rate your understanding of the lesson.
15

Slide 23 - Poll