P.S. - Fall Final

Which of the following is a logical progression for a scientist to follow (the scientific method)?

• Observation, hypothesis, question, test (experimentation), conclude.

• Observation, question, hypothesis, test (experimentation), conclude (share results).

• Question, research and form hypothesis, analyze data, experiment, communicate results.

• Question, experiment, research and form hypothesis, analyze date, communicate results.

Tags

NGSS.MS-PS2-2

What would be an appropriate hypothesis to test what liquid is the least dense?

• What liquid is the least dense?

• If I stack the liquids in the same container they will mix.

• What type of container is best used for stacking liquids?

• If I stack the liquids in the same container, then liquid B will be the least dense and rise to the top of the container.

Maria is 123 centimeters tall. What is her height in meters?

• 1.23 m

• 0.0123 m

• 0.123 m

• 12.3 m

To convert 17 grams into kilograms, which method below would you use?

• Subtract the number of grams from 1000
• Multiply the number of grams by 1000
• Divide the number of grams by 1000
• Add 1000 to the number of grams

A precise measurement is one that

• is close to a desired value/target.

• is repeatable or close to other measured values.

• contains at least 3 significant figures.

• is far from other measured values.

Which of the following shows 0.0000043 in scientific notation?

• 4.3 x 10⁻⁷

• 4.3 x 10⁶

• 4.3 x 10⁷

• 4.3 x 10⁻⁶

The speed of light is approximately 3.0 x 10⁸ m/s. How would this be written in standard notation?

• 300,000,000 m/s

• 30,000,000 m/s

• 3,000,000 m/s

• 300,000 m/s

The kinetic theory states that the higher the temperature, the faster the

• lighter particles within a substance clump together.

• molecules of gas rush together.

• bonds between atoms break down.

• particles that make up a substance move.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A substance changes from a liquid to a gas during evaporation because

• energy is absorbed

• energy is created.

• energy is released.

• energy is lost.

Tags

NGSS.MS-PS1-4

Which of these properties is shared by solids, liquids, and gases?

• they are fluids

• they are easily compressible

• they expand to fill their containers

• their particles are in constant motion

Tags

NGSS.MS-PS1-4