Nature of Science Review

One tank of gold fish is fed the normal amount of food once a day, a second is fed twice a day, and a third tank four time a day during a six week study. The fish's weight is recorded daily.

What's the test (independent) variable?

• Amount of food

• Weight of fish

• Tank

• Time

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

One tank of gold fish is fed the normal amount of food once a day, a second is fed twice a day, and a third tank four time a day during a six week study. The fish's weight is recorded daily.

What's the outcome (dependent) variable?

• Amount of food

• Weight of fish

• Time

• Tank

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

One tank of gold fish is fed the normal amount of food once a day, a second is fed twice a day, and a third tank four time a day during a six week study. The fish's weight is recorded daily.

What's the control group?

• Fish with normal amount of food

• Fish with different amounts of food

• Tanks

• Time

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is the outcome (dependent) variable in this experiment?

• size of the bubbles produced

• distance of the light from the beaker

• number of bubbles produced

• time at which the bubbles were counted

Tags

NGSS.MS-LS1-6

What is the outcome (dependent) variable?

• temperature

• water level

• time

• weight

Each test tube represents a different trial. What experimental practice involves carrying out multiple trials?

• Repetition

• Replication

• Observations

• Hypothesis

Tags

NGSS.MS-ETS1-4

Scientific _______________ describe what will happen, but do not explain why.

• Laws

• Theories

• Hypothesis

• Models

Attempts at explanations of what is seen are called __________________________.

• Observations

• Inferences

• Hypothesis

• Investigations

Repetition or replication?

• Repetition

• Replication

Explanations of why and/or how a scientific phenomenon occurs.

• Scientific Laws

• Scientific Theories

• Hypothesis

• Scientific Conclusions

Tags

NGSS.MS-LS2-4

NGSS.MS-PS3-5