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Physical and chemical changes

5th grade (Year 6 in England) · 16 questions · Common Core: NGSS.5-PS1-4, NGSS.MS-PS1-2 · England: KS2 Y5 Properties and changes of materials, KS3 Chemistry: Chemical reactions

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1
Question 1
Is this a physical or a chemical change: ice melting?
- A. physical change
- B. chemical change
2
Question 2
Physical and chemical changes: which statement is NOT true?
- A. All bubbles mean a chemical reaction.
- B. In a chemical reaction, atoms are rearranged to make new substances.
- C. Burning is a chemical change.
- D. Rusting needs both oxygen and water.
3
Question 3
A nail left outside turns orange-brown and flaky. What has happened?
- A. Iron reacted with oxygen and water to make rust
- B. The nail dissolved
- C. The nail melted
- D. Paint fell on it
4
Question 4
Is this a physical or a chemical change: ice melting?
- A. physical change
- B. chemical change
5
Question 5
Physical and chemical changes: which statement is NOT true?
- A. In a chemical reaction, atoms are rearranged to make new substances.
- B. Atoms are destroyed in chemical reactions.
- C. Burning is a chemical change.
- D. Dissolving is a physical change.
6
Question 6
Which is a chemical change you might see in a kitchen?
- A. freezing juice
- B. melting butter
- C. toasting bread
- D. chopping carrots
7
Question 7
Is this a physical or a chemical change: wood burning?
- A. physical change
- B. chemical change
8
Question 8
Physical and chemical changes: which statement is NOT true?
- A. Burning is a chemical change.
- B. Melting is a chemical change.
- C. Dissolving is a physical change.
- D. In a chemical reaction, atoms are rearranged to make new substances.
9
Question 9
Which is a chemical change you might see in a kitchen?
- A. chopping carrots
- B. toasting bread
- C. melting butter
- D. freezing juice
10
Question 10
Is this a physical or a chemical change: fireworks exploding?
- A. physical change
- B. chemical change
11
Question 11
Physical and chemical changes: which statement is NOT true?
- A. Rusting needs both oxygen and water.
- B. In a chemical reaction, atoms are rearranged to make new substances.
- C. Burning is a chemical change.
- D. Atoms are destroyed in chemical reactions.
12
Question 12
Why is boiling water a physical change?
- A. It cannot be reversed
- B. Bubbles always mean a chemical change
- C. Water turns into hydrogen and oxygen
- D. The steam is still water, just in a different state
13
Question 13
Is this a physical or a chemical change: sugar dissolving in tea?
- A. physical change
- B. chemical change
14
Question 14
Physical and chemical changes: which statement is NOT true?
- A. Dissolving is a physical change.
- B. Atoms are destroyed in chemical reactions.
- C. Rusting needs both oxygen and water.
- D. Burning is a chemical change.
15
Question 15
Why is boiling water a physical change?
- A. The steam is still water, just in a different state
- B. It cannot be reversed
- C. Water turns into hydrogen and oxygen
- D. Bubbles always mean a chemical change
16
Question 16
Is this a physical or a chemical change: fireworks exploding?
- A. physical change
- B. chemical change

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Answer key: Physical and chemical changes

1. A. physical change
2. A. All bubbles mean a chemical reaction.
3. A. Iron reacted with oxygen and water to make rust
4. A. physical change
5. B. Atoms are destroyed in chemical reactions.
6. C. toasting bread
7. B. chemical change
8. B. Melting is a chemical change.
9. B. toasting bread
10. B. chemical change
11. D. Atoms are destroyed in chemical reactions.
12. D. The steam is still water, just in a different state
13. A. physical change
14. B. Atoms are destroyed in chemical reactions.
15. A. The steam is still water, just in a different state
16. B. chemical change