The variable changed and tested by the scientist in an experiment...

• controlled

• dependent

• independent

• both independent and dependent

Tags

NGSS.MS-PS2-2

Controlled variables (constants) ...

• are not used in an experiment

• are used to measure results

• are used only on the control group

• are not changed during the experiment

Tags

NGSS.MS-PS2-2

A valid experiment has ...

• one independent variable

• repetition

• limited bias

• all of these answers

An independent variable ...

• does not change in an experiment

• is measured in an experiment

• is controlled in an experiment

• is tested in an experiment

Tags

NGSS.MS-PS3-4

Draw a conclusion from this graph:

• the speed of A is increasing

• the speed of B is greater than the speed of A

• the speed of C is decreasing

• All answers are correct

Tags

NGSS.MS-PS3-1

The dependent variable ...

• changes because of the independent variable

• is changed by the scientist

• stays the same

• none of these answers is right

Tags

NGSS.MS-PS2-2

A control group...

• does not have constants

• is not used in an experiment

• does not receive the independent variable

• is not used for evidence

Bad experiments have...

• repetition

• replication

• bias

• empirical evidence

Tags

NGSS.MS-PS1-2

Replication is...

• repeating an experiment

• other scientists repeating experiment

• when you replicate something

• having multiple trials

Which is an experiment?

• frying eggs at different temperatures to see how temperature affects protein degradation

• watching birds at a birdfeeder to see what seeds they like

• seeing how long it takes one mouse to run a maze to find a piece of cheese

• these are all experiments