Unit 1-2 Test Review

What is a control group?

• Something that changes

• A separate group, without the independent variable, used to compare

• A separate group, with the independent variable. Is tested.

Answer explanation

Control Compares

Tags

NGSS.MS-PS2-5

A variable is

• something that changes

• something that stays the same

Answer explanation

it varies

A constant is

• something that changes

• something that stays the same

Answer explanation

You know, like that one person that is CONSTANTLY on your nerves 🙄

The dependent variable...

• is tested in the experiment " I change"

• is what is measured "Data"

Tags

NGSS.MS-PS2-2

The independent variable

• is tested in the experiment " I change"

• is what is measured "Data"

Tags

NGSS.MS-PS3-4

NGSS.MS-PS2-2

A scientist is testing the effect of insecticide on plant growth. The independent variable is -

• insecticide

• plant growth

• type of plant

• a plant that does not receive the insecticide

Answer explanation

Independent = "I change"; Cause

Tags

NGSS.MS-LS1-5

A scientist is testing the effect of insecticide on plant growth. The dependent variable is -

• insecticide

• plant growth

• type of plant

• a plant that does not receive the insecticide

Answer explanation

Dependent = Data; Effect

Tags

NGSS.MS-LS1-5

A scientist is testing the effect of insecticide on plant growth. The control (group) is -

• insecticide

• plant growth

• type of plant

• a plant that does not receive the insecticide

Answer explanation

Control COMPARES

A scientist is testing the effect of insecticide on plant growth. A constant would be -

• insecticide

• plant growth

• type of plant

• a plant that does not receive the insecticide

Answer explanation

Constants are things that stay the same. We would want to use the same type of plant.

Tags

NGSS.MS-LS2-1

Convert 0.0058 to scientific notation

• 5.8 x 10³

• 5.8 x 10⁴

• 5.8 x 10^-3

• 5.8 x 10^-4