Questions

1) Select all the units that are U.S. Customary Units.

A) yard
B) ounce
C) cup
D) meter
E) foot

Correct!

2) Select all the units that are Metric Units.

A) liter
B) meter
C) pound
D) ounce
E) millimeter

Correct!

3) List two metric units of volume.

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4) List two customary units of volume.

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5) List two customary units of weight.

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6) What are two fields of work for a chemist?

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7) Every chemist must know the scientific method, the _____ system, and skills in mathematics.

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8) Why don’t chemist stop with the first step in the Scientific Method, making observations?

A) Chemist don't think that observations are a very good place to start.

B) Chemist don't trust their own observations and want other's opinions.

C) Chemist would rather run experiments than observe the world around them.

D) Chemist want to test what they observe to make sure it is correct.

Correct!

9) Another term of a prediction is...

A) experiment

B) conclusion

C) hypothesis

D) variable

Correct!

10) How does a chemist form a hypothesis?

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11) What does it mean to control variables in an experiment?

A) to take complete notes about everything you observe in the experiment

B) to not touch anything once you set up the parts of an experiment

C) to used different objects for all of the parts of an experiment

D) to keep as many things the same as possible across the parts of an experiment

Correct!

12) Explain the steps of the Scientific Method.

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13) Identify the two major systems of measurements.

A) customary
B) temperate
C) metric
D) grams
E) capacity

Correct!

14) What is the metric unit to measure weight?

A) gram

B) pound

C) ounce

D) ton

Correct!

15) Which system of measurement would be best to use in chemistry class?

A) the metric system because it is older than the customary system

B) the customary system because it measures length in inches

C) the metric system because it is simpler and more organized

D) the customary system because it is simpler and more organized

Incorrect

16) Units in the metric system are divided by units of ___.

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17) Which tool measures degrees of temperature?

A) yardstick

B) graduated cylinder

C) protractor

D) thermometer

Correct!

18) Which tool would you use to determine mass?

A) beaker

B) protractor

C) graduated cylinder

D) scale

Correct!

19) Mark is doing a chemistry experiment and needs to mix a very small amount of vinegar with baking soda. Which tool should he use to measure the vinegar?

A) scale

B) graduated cylinder

C) beaker

D) test tube

Correct!

20) This is an explanation of an aspect of the natural world that can be repeatedly tested and verified in accordance with the scientific method.

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21) This is a forecast or statement about a future event.

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22) This is an educated guess.

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23) The golden frog shown below started on the red lily pad at the top (marked "Start"). It then jumped around as shown by the purple arrows. It is currently on a blue pad. What color pad will the frog jump to next?

A) red

B) green

C) blue

D) all are equally likely

Correct!

24) How would you describe the jumping pattern of the green frog shown below?

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25) A scientist believes that a frog repeats the pattern "red, green, blue." Which prediction could be used to test this hypothesis?

A) if the frog is placed on Pad A, it will jump to a red pad

B) if the frog is placed on Pad A, it will jump to a blue pad

C) if the frog is placed on a red pad, it will jump to pad A

D) if the frog is placed on a blue pad, it will jump to pad A

Incorrect

26)

A student believes a frog follows this rule: "If the frog is on a red lily pad, it jumps to a blue pad or a green pad. If it is on a blue or green pad, it jumps to a red pad."

Which prediction could be used to test this hypothesis?

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27) Extended Learning

Watch the following video, then write a five-sentence paragraph summarizing the video.

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28) ChemLab: Pattern Finder

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How Do We Study Chemistry?

Watch the video to answer the following questions.<

What does a Chemist do?

Scientific Method

Metric System

Mathematical Skills

ChemLab: Pattern Finder