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HIA International — Grade 7

Unit 1: Breathing and respiration

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Unit 2: Dissolving, solubility and chromatography

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Unit 3: Forces, motion and pressure

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Unit 4: Ecosystems

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Unit 5: Atoms, purity and climate

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Unit 6: Light and objects in space

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Unit 7: Nutrition, health and movement

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Unit 8: Energy changes and reactions of metals

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Unit 9: Magnetism and electromagnets

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Quiz

Endothermic reactions – Quiz

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Endothermic reactions HIA Science quiz: free practice for HIA International. Work through this Endothermic reactions HIA Science quiz and get instant feedback on every answer. If you get stuck, review the 17.2 Endothermic reactions – Notes lesson. More practice: HIA International — all units. Syllabus: Cambridge Lower Secondary programme.

  • Questions count: 50
  • Passing grade: A-
  • Time limit:
Start Quiz
1.
Which statement correctly describes endothermic reaction?
a sports first-aid pack that uses an endothermic reaction to get cold
the decrease in temperature measured during an endothermic reaction
a reaction that takes in energy from the surroundings
the acid mixed with sodium hydrogencarbonate in a classic endothermic reaction
2.
Which statement correctly describes temperature fall?
the endothermic breaking down of a compound by heating
the decrease in temperature measured during an endothermic reaction
the endothermic reaction in plants that takes in light energy
a sports first-aid pack that uses an endothermic reaction to get cold
3.
Which statement correctly describes thermal decomposition?
the acid mixed with sodium hydrogencarbonate in a classic endothermic reaction
a sports first-aid pack that uses an endothermic reaction to get cold
the endothermic breaking down of a compound by heating
a reaction that takes in energy from the surroundings
4.
Which statement correctly describes photosynthesis?
a sports first-aid pack that uses an endothermic reaction to get cold
the endothermic reaction in plants that takes in light energy
the decrease in temperature measured during an endothermic reaction
the endothermic breaking down of a compound by heating
5.
Which statement correctly describes instant cold pack?
the acid mixed with sodium hydrogencarbonate in a classic endothermic reaction
the endothermic reaction in plants that takes in light energy
a sports first-aid pack that uses an endothermic reaction to get cold
a reaction that takes in energy from the surroundings
6.
Which statement correctly describes citric acid?
the acid mixed with sodium hydrogencarbonate in a classic endothermic reaction
the endothermic breaking down of a compound by heating
the endothermic reaction in plants that takes in light energy
the decrease in temperature measured during an endothermic reaction
7.
The temperature of a reaction mixture falls from 24 C to 16 C. What does this suggest?
The reaction is endothermic and takes in energy from the surroundings
The reaction is exothermic and releases heat to the surroundings
No energy transfer has occurred
The reaction has produced oxygen only
8.
Why can an instant cold pack feel cold when its chemicals are mixed?
The process absorbs thermal energy from the surroundings
The process releases a large amount of thermal energy
The pack creates cold particles
All particle movement stops permanently
9.
Which observation distinguishes an endothermic reaction from an exothermic reaction in an insulated cup?
The temperature falls rather than rises
A new substance is never formed
The reactants always become metals
The reaction cannot involve energy
10.
Which procedure gives the best evidence that a reaction is endothermic?
Measure the mixture temperature before mixing and record its lowest value afterwards
Record only the colour of the beaker
Touch the chemicals directly with a finger
Measure temperature before the reactants are added but never afterwards
11.
During an endothermic change, where does the energy absorbed by the reacting system come from?
The surroundings
Nowhere, because energy is created
Only the mass of the thermometer
The products after the reaction has finished
12.
Thermal decomposition requires continuous heating. Why is this consistent with an endothermic process?
Energy must be supplied to break down the compound
The compound supplies unlimited energy to the heater
Heating prevents all chemical bonds from changing
The process always lowers the mass to zero
13.
Which term is described as: a reaction that takes in energy from the surroundings?
endothermic reaction
thermal decomposition
photosynthesis
temperature fall
14.
Match the term to its correct meaning: endothermic reaction
a reaction that takes in energy from the surroundings
the endothermic reaction in plants that takes in light energy
a sports first-aid pack that uses an endothermic reaction to get cold
the endothermic breaking down of a compound by heating
15.
Which term is described as: the decrease in temperature measured during an endothermic reaction?
temperature fall
photosynthesis
endothermic reaction
instant cold pack
16.
Match the term to its correct meaning: temperature fall
a reaction that takes in energy from the surroundings
the decrease in temperature measured during an endothermic reaction
the endothermic reaction in plants that takes in light energy
the acid mixed with sodium hydrogencarbonate in a classic endothermic reaction
17.
Which term is described as: the endothermic breaking down of a compound by heating?
thermal decomposition
temperature fall
photosynthesis
endothermic reaction
18.
Match the term to its correct meaning: thermal decomposition
a sports first-aid pack that uses an endothermic reaction to get cold
the endothermic breaking down of a compound by heating
a reaction that takes in energy from the surroundings
the endothermic reaction in plants that takes in light energy
19.
Which term is described as: the endothermic reaction in plants that takes in light energy?
thermal decomposition
endothermic reaction
photosynthesis
instant cold pack
20.
Match the term to its correct meaning: photosynthesis
the decrease in temperature measured during an endothermic reaction
a reaction that takes in energy from the surroundings
the acid mixed with sodium hydrogencarbonate in a classic endothermic reaction
the endothermic reaction in plants that takes in light energy
21.
Which term is described as: a sports first-aid pack that uses an endothermic reaction to get cold?
thermal decomposition
instant cold pack
temperature fall
endothermic reaction
22.
Match the term to its correct meaning: instant cold pack
the endothermic breaking down of a compound by heating
a sports first-aid pack that uses an endothermic reaction to get cold
a reaction that takes in energy from the surroundings
the endothermic reaction in plants that takes in light energy
23.
Which term is described as: the acid mixed with sodium hydrogencarbonate in a classic endothermic reaction?
thermal decomposition
photosynthesis
citric acid
endothermic reaction
24.
Match the term to its correct meaning: citric acid
the decrease in temperature measured during an endothermic reaction
a sports first-aid pack that uses an endothermic reaction to get cold
a reaction that takes in energy from the surroundings
the acid mixed with sodium hydrogencarbonate in a classic endothermic reaction
25.
A reaction that takes in energy from the surroundings is _____.
neutral
reversible
exothermic
endothermic
26.
During an endothermic reaction the temperature of the surroundings _____.
rises
doubles
falls
stays the same
27.
Breaking a compound down by heating is called thermal _____.
conduction
insulation
expansion
decomposition
28.
The reaction in plants that takes in light energy is _____.
corrosion
respiration
photosynthesis
combustion
29.
Citric acid with sodium hydrogencarbonate makes the mixture _____.
hotter
heavier
brighter
colder
30.
A _____ temperature change shows the reaction is endothermic.
constant
positive
negative
zero
31.
An endothermic reaction takes in energy from the surroundings. - True or false?
True
False
32.
An endothermic reaction gives out energy to the surroundings. - True or false?
True
False
33.
The temperature of the surroundings falls during an endothermic reaction. - True or false?
True
False
34.
The temperature of the surroundings rises during an endothermic reaction. - True or false?
True
False
35.
Photosynthesis is an endothermic reaction. - True or false?
True
False
36.
Photosynthesis is an exothermic reaction. - True or false?
True
False
37.
Thermal decomposition is endothermic because energy must be supplied to break the compound down. - True or false?
True
False
38.
Thermal decomposition is exothermic because it releases energy as the compound breaks down. - True or false?
True
False
39.
Citric acid reacting with sodium hydrogencarbonate makes the mixture colder. - True or false?
True
False
40.
Citric acid reacting with sodium hydrogencarbonate makes the mixture hotter. - True or false?
True
False
41.
Instant cold packs use an endothermic change. - True or false?
True
False
42.
Instant cold packs use an exothermic change. - True or false?
True
False
43.
Heating calcium carbonate to make calcium oxide is an endothermic reaction. - True or false?
True
False
44.
Heating calcium carbonate to make calcium oxide is an exothermic reaction. - True or false?
True
False
45.
A negative temperature change shows the reaction is endothermic. - True or false?
True
False
46.
A negative temperature change shows the reaction is exothermic. - True or false?
True
False
47.
Most reactions that need continuous heating to keep going are endothermic. - True or false?
True
False
48.
Reactions that need continuous heating are always exothermic. - True or false?
True
False
49.
Whether a reaction is exothermic or endothermic can be decided by measuring the temperature change. - True or false?
True
False
50.
Whether a reaction is exothermic or endothermic can only be decided by its colour. - True or false?
True
False
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Part of Unit 8: Energy changes and reactions of metals — see every lesson and quiz in this unit.
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