Controlled

If you are testing how fertilizer affects plant growth, which one is NOT a constant?

• amount of sunlight

• temperature

• amount of water

• amount of fertilizer

Tags

NGSS.MS-LS2-1

A separate part of the experiment where nothing is changed in order to see what would normally happen.

• control

• constant

• theory 

• model

Identify where the REFRACTION is happening in the picture with the laser and water.

Tags

NGSS.MS-PS4-2

What was placed in the bottom of the tank to make this happen?

• Prism

• Mirror

• Fish

• Light Bulb

Tags

NGSS.MS-PS4-2

What Variables were Controlled and what was the testing variable in this experiment?

Groups:

(a) Controlled Variables

,

(b) Testing Variable

• Tomato Seeds

• Dirt

• Light Bulbs

• Daily Water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What is the testing variable in this plant experiment?

• Turnip Seeds

• Daily Water

• Lights

• Soil

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Place the variables in the correct category for a controlled experiment.

Groups:

(a) Controlled Variables

,

(b) Testing Variable

• Surface

• Total Mass

• Fan Speed

Tags

NGSS.MS-PS2-2

In a scientific experiment, what is the purpose of a control group?

• To provide a standard for comparison

• To introduce a new variable

• To ensure the experiment is valid

• To eliminate all variables

Which of the following is a controlled variable in an experiment testing the effect of temperature on solubility?

• Amount of solute

• Type of solvent

• Temperature

• Stirring speed

In an experiment, why is it important to control variables?

• To increase the number of variables

• To ensure that the results are due to the independent variable

• To make the experiment more complex

• To allow for random changes

Tags

NGSS.MS-PS2-2