Which of the following is a chemical reaction?

Year 8 Science Quiz Revision

Quiz
•
Science
•
8th Grade
•
Easy
Alexandra Kress
Used 8+ times
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Melting ice
Burning wood
Dissolving sugar in water
Breaking a glass
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main difference between a physical change and a chemical change?
Physical change is often reversible, chemical change is not
Chemical change involves a change in state, physical change does not
Physical change creates new substances, chemical change does not
Chemical change is often reversible, physical change is not
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which organ is primarily responsible for gas exchange in the respiratory system?
Heart
Lungs
Liver
Kidneys
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main function of the digestive system?
To circulate blood throughout the body
To break down food and absorb nutrients
To filter waste from the blood
To exchange gases with the environment
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component of the circulatory system is responsible for transporting oxygen?
White blood cells
Platelets
Red blood cells
Plasma
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the smallest unit of matter?
Molecule
Atom
Compound
Cell
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of energy transformation?
A car engine converting petrol into motion
A book falling off a shelf
Water freezing into ice
A balloon popping
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