Retest (topic 1-3)

Retest (topic 1-3)

by Shane Hastie

Multiple Choice

1.

Based on the scientific method, which of the following would be a suitable hypothesis?

• A. Not having enough sleep makes it more difficult to wake up.

• B. If you have enough sleep, then you will feel better and have more energy.

• C. When you sleep too much, it makes you feel tired.

• D. Sleeping too much or too little does not affect how you feel.

Multiple Choice

2.

You test your hypothesis in a scientific way.

Which step on the scientific method would this be?

• A. The conclusion

• B. the experiment

• C. the question

• D. the communication of results

Multiple Choice

3. Which is the correct order of the scientific method?

• A. form a hypothesis, conduct an experiment, record data, make a conclusion

• B. conduct an experiment, record data, make a conclusion, form a hypothesis

• C. make a conclusion, conduct an experiment, record data, form a hypothesis

• D. record data, make a conclusion, form a hypothesis, conduct an experiment

Multiple Choice

4. Look at the table, what is the mean (average) age of the cousins?

• 1

• 3

• 20

• 10

Multiple Choice

5. A scientist was conducting an experiment and noticed that when he mixed two substances together an unusual smell occurred. What scientific skill was the scientist using?

• A. He was classifying

• B. He was calculating

• C. He was not sure

• D. He was observing

Multiple Choice

6. all matter (everything in the universe) is made of what

• A. energy

• B. atoms

• C. electrons

• C. compounds

Multiple Choice

7. The positive particles of an atom are

• A. electrons

• B. electron cloud

• C. neutrons

• D. protons

Multiple Choice

8. the central region of an atom where its neutrons and protons are is its 

• A. nucleus 

• B. electron cloud

• C. core 

• D. center 

Multiple Choice

9. What are the 3 particles that make-up the atom?

• A. neutrons, protons, and isotopes

• B. neutrons, isotopes, and electrons

• C. positives, negatives, and atoms

• D. protons, neutrons, and electrons

Multiple Choice

10. What is the number of protons that the element in this image contain?

• A. 14

• B. 6

• C. 15

• D. 18

Multiple Choice

11. What is the Atomic mass number that the element in this image contains?

• 14

• 6

• 15

• 12

Multiple Choice

The blue elements are called ______.

• A. metals

• B. nonmetals

• C. metalloids

• D. noble gases

Multiple Choice

13. Elements which are shiny, conduct electricity and heat are called _____.

• A. helium

• B. nonmetal

• C. metals

• D. nonexistent

Multiple Choice

14. The three main groups of elements are metals, nonmetals, and

• A. inert gases.

• B. alkali

• C. radioactive isotopes.

• D. metalloids.

Multiple Choice

15. Which elements are poor conductors of electricity and heat?

• A. metals

• B. metalloids

• C. nonmetals

• D. bombs