Experimental Design - Advanced

Answer the following using the picture. What is the independent variable?

• Orientation of the test tube

• Type of plant

• Direction of plant growth

• Water

Tags

NGSS.MS-LS1-5

Answer the following using the picture. What is the dependent variable?

• Orientation of the test tube

• Type of plant

• Direction of plant growth

• Water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Answer the following using the picture below. What are the constants? Select all that apply.

• Type of plant

• Water

• Test tube

• Plant growth

• Stopper

Tags

NGSS.MS-LS1-5

Which question is this apparatus most likely designed to answer?

• Does atmospheric pressure affect transpiration?

• Does gravity affect the direction of plant growth?

• Does turgor pressure affect the absorption of water?

• Does absorbed light increase the environmental temperature?

Tags

NGSS.MS-LS1-5

An experiment was designed to keep an egg intact while falling from a high point. For each experiment, the different devices will be drop the same type of egg from the same height. What is the independent variable?

• egg drop devices

• eggs and height

• the egg smashing or staying intact

An experiment was designed to keep an egg intact while falling from a high point. For each experiment, the different devices will be drop the same type of egg from the same height. What is the dependent variable?

• egg drop devices

• eggs and height

• the egg smashing or staying intact

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

An experiment was designed to keep an egg intact while falling from a high point. For each experiment, the different devices will be drop the same type of egg from the same height. What is the control?

• egg drop devices

• eggs and height

• the egg smashing or staying intact

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

During an experiment, a scientist tests variables. The ​ (a)   variable can be changed by the scientist, who then uses​ the (b)   variable to assess whether there were any changes. During the experiment, they use a(n) ​ (c)   group to give their independent variable to and a(n) ​ (d)   group that they do not give their independent variable to.

• independent
• dependent
• experimental
• control

Tags

NGSS.MS-PS1-2

Aaron wanted to test the affect of different colored lights on plant growth. Put the procedures in the correct order to carry out this experiment.

• Repeat 5 times and average the height for each group

• Let grow for 50 days and then measure the height of each plant.

• Water each pot daily with 30mL of water.

• Place one pot under yellow light, one pot under red light, one pot under blue light, and one pot with no light.

• Put one tomato seed each in a pot with the same type of soil.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The purpose of the control group is:

• Used for comparisons
• Application of the I.V.
• Application both the I.V. and D.V.
• Application of all constants.