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5th grade chemical reactions, acids and bases

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: wood burning?
- A. physical change
- B. chemical change
2
Question 2
Physical and chemical changes: which statement is NOT true?
- A. In a chemical reaction, atoms are rearranged to make new substances.
- B. Burning is a chemical change.
- C. Atoms are destroyed in chemical reactions.
- D. Rusting needs both oxygen and water.
3
Question 3
Which is a chemical change you might see in a kitchen?
- A. chopping carrots
- B. melting butter
- C. freezing juice
- D. toasting bread
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. All bubbles mean a chemical reaction.
- B. Rusting needs both oxygen and water.
- C. Dissolving is a physical change.
- D. Burning is a chemical change.
6
Question 6
A nail left outside turns orange-brown and flaky. What has happened?
- A. The nail dissolved
- B. The nail melted
- C. Iron reacted with oxygen and water to make rust
- D. Paint fell on it
7
Question 7
Is this a physical or a chemical change: baking bread?
- A. physical change
- B. chemical change
8
Question 8
Physical and chemical changes: which statement is NOT true?
- A. Dissolving is a physical change.
- B. Rusting needs both oxygen and water.
- C. Atoms are destroyed in chemical reactions.
- D. In a chemical reaction, atoms are rearranged to make new substances.
9
Question 9
A nail left outside turns orange-brown and flaky. What has happened?
- A. The nail dissolved
- B. The nail melted
- C. Iron reacted with oxygen and water to make rust
- D. Paint fell on it
10
Question 10
Is this a physical or a chemical change: baking bread?
- 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. Burning is a chemical change.
- C. Melting is a chemical change.
- D. In a chemical reaction, atoms are rearranged to make new substances.
12
Question 12
A nail left outside turns orange-brown and flaky. What has happened?
- A. The nail melted
- B. Paint fell on it
- C. Iron reacted with oxygen and water to make rust
- D. The nail dissolved
13
Question 13
Is this a physical or a chemical change: baking bread?
- 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. All bubbles mean a chemical reaction.
- C. Burning is a chemical change.
- D. Rusting needs both oxygen and water.
15
Question 15
A nail left outside turns orange-brown and flaky. What has happened?
- A. The nail melted
- B. Iron reacted with oxygen and water to make rust
- C. Paint fell on it
- D. The nail dissolved
16
Question 16
Is this a physical or a chemical change: water boiling?
- A. physical change
- B. chemical change

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Answer key: 5th grade chemical reactions, acids and bases

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