SC.6.N.2.2

Randy places a piece of metal in 3 different acids and water. Why does he need the water?

• to compare the affect of acids to it.

• to see what happens to the metal.

• to see how acid rain affects the metal.

• to compare the affect of the acids on the metal.

Colleen wants to find out if watering plants more often produces more leaves. What is the test variable?

• number of leaves

• number of plants

• amount of plant growth

• amount of water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Colleen wants to find out if watering plants more often produces more leaves. What is the outcome variable?

• the number of leaves

• the number of plants

• the amount of plant growth

• the amount of water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Other than scientific experiments, what other methods do scientists use to investigate problems?

• Models, Observations, & Research

• Models, Observation, & Replication

• Models, Repetition, & Replication

• Models, Repetition, & Variables

Tags

NGSS.MS-LS1-1

Science determines results based on _____________________.

• Rumor

• Hypothesis

• Evidence

• Popular opinion

Tags

NGSS.MS-LS1-4

NGSS.MS-LS2-4

NGSS.MS-PS1-2

Scientists sometimes change their views. For example, people once believed that Pluto was a planet. What causes these changes in thinking?

• new experiments

• new evidence or interpretations

• new scientific beliefs

• new theories develop

Tags

NGSS.MS-ESS3-5

Which one is a limitation of a drawing but not a model of the cell?

• it does represent the main parts of a cell

• it does not contain the correct number of nuclei

• it cannot represent a true cell which is 3 dimensional

• it cannot represent a true cell since the cytoplasm should be in constant motion

Tags

NGSS.MS-LS1-2

How can you differentiate between repetition and replication?

• both provide accurate results

• repetition provides accurate results and replication merely provides more data

• repetition is when someone else uses your procedure to repeat the experiment and replication is when you repeat the experiment.

• repetition is when you repeat the experiment and replication is when someone else uses your procedure to repeat the experiment

Joe thinks that Pepsi will have the most carbonation. He attaches balloons to all of the sodas, shakes them, and records the size of the balloons. What is the test variable?

• type of soda

• size of the balloons

• shaking of the soda bottles

• size of the soda bottles

Joe thinks that Pepsi will have the most carbonation. He attaches balloons to all of the sodas, shakes them, and records the size of the balloons. What is the outcome variable?

• type of soda

• size of the balloons

• shaking of soda bottles

• size of the soda bottles