Chapter 1 The Scientific Endeavor

Scientific investigation is an understanding of the _______ processes of the world.

What skill is a scientist using when she listens to the sounds that whales makes?

• making a hypothesis

• interpreting data

• making observations

• drawing conclusions

A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. What is the dependent variable?

• the number of plants in the water

• the amount of salt in the water

• the temperature of the water

• the type of body of water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

When you decide whether or not the data supports the original hypothesis, you are _________?

• making observations

• drawing conclusions

• drawing conclusions

• forming a hypothesis

Tags

NGSS.MS-PS1-2

A scientist who wants to study the effects of fertilizer on plants, sets up an experiment. Plant A gets no fertilizer, Plant B gets 5 mg of fertilizer each day, and Plant C gets 10mg of fertilizer each day. Which plant is the control group?

• Plant A

• Plant B

• Plant C

• all of them

Tags

NGSS.MS-LS2-1

After completing an experiment, all chemical wastes should be

• dumped down sink
• taken home
• thrown in trash
• disposed of according to teacher's directions

What does this symbol mean if found as a label on a substance?

• Flamable

• Flammable

• Set this on fire

What does this symbol stand for?

• Flammable

• Oxidising

• Irritant

• Corrosive

What does this symbol stand for?

• Flammable

• Toxic

• Deadly

• Corrosive

What does this symbol warn us of?

• Danger

• Alert

• Toxic

• Irritant/harmful