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G7 ELIMINATION QUIZ

Authored by Rose Ann Sereno

Science

7th Grade

Used 3+ times

G7 ELIMINATION QUIZ
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

  1. 1. Which of the following is an example of a synthetic material?

A. Wood

B. Cotton

C. Plastic

D. Sand

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

2 .Why are metals often used for making electrical wires?

A. Brittle

B. Conductors of electricity

C. Poor conductors of heat

D. Transparent

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

3. Which property of glass makes it useful for making windows?

A. Flexibility

B. Transparency

C. Conductivity

D. Magnetism

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

4. Which statement BEST describes a mixture?

A. A substance with only one type of atom.

B. A substance that cannot be broken down.

C. A physical combination of two or more substances.

D. A chemical combination that cannot be separated.

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

5. Why do scientists use models?

A. To avoid experiments.

B. To replace real objects permanently.

C. To explain and predict phenomena.

D. To make experiments harder.

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

6. The Bohr model of the atom is an example of what scientific model?

A. A chemical reaction

B. A scientific theory

C. A physical law

D. A scientific model

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

7. Which of the following is a limitation of scientific models?

A. They always explain reality exactly.

B. They can be updated when new evidence is found.

C. They are impossible to use.

D. They never change.

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