Scientific Method Test Review

Kevin wants to see if the new special fertilizer is better than the generic fertilizer.  He gets 3 pea plants, 3 cucumber plants, and 3 corn plants. He gives the pea plant the new special fertilizer, the corn plants receive the generic fertilizer, and the 3 cucumber plants receive no fertilizer. He gives the corn plant and the pea plant 100 ml of water every day and he gives the cucumber plant 200 ml of water every day. Once a week for 9 weeks, he measures the height of the pea plant.

How would Kevin's experiment improve?

• Change the plants to different plants

• Use different locations for each plant

• 1. Use the same water measurement for all plants

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Kevin wants to see if the new special fertilizer is better than the generic fertilizer.  He gets 3 pea plants, 3 cucumber plants, and 3 corn plants. He gives the pea plant the new special fertilizer, the corn plants receive the generic fertilizer, and the 3 cucumber plants receive no fertilizer. He gives the corn plant and the pea plant 100 ml of water every day and he gives the cucumber plant 200 ml of water every day. Once a week for 9 weeks, he measures the height of the pea plant.

What is the correct hypothesis for the experiment above?

• 1. If the plants are changed, then the pea plant will grow higher.

• 1. If we change the fertilizer, then the corn plant will grow more.

• 1. If the water is changed, then the plants will stop growing.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

7. Measure the following volume.

• 85 ml

• 82 ml

• 80 ml

7. Measure the following volume.

• 1. 670 ml

• 1. 680 ml

• 1. 690 ml

What mass is shown on the triple beam balance?

• 313.3g

• 310.3g

• 300.3g

What mass is shown on the triple beam balance?

• 1. 480.5g

• 1. 408.5g

• 1. 485.0g

What mass is shown on the triple beam balance?

• 1. 70.5g

• 1. 77.5g

• 1. 708.5g

Match the following:

• 1. milliliters (ml)

• volume

• 1. centimeter (cm)

• length

• 1. grams (g)

• mass

Tags

NGSS.MS-PS1-5

SpongeBob Square pants wanted to see which brand of bubble gum blew the biggest bubble. He chose three brands to test: Bubble Yum, Big Chew, and Tasty Burst.

1. A) Brand of gum

2. B) Person blowing the gum

3. C) Size of the bubble

• 1. C) Size of the bubble

• 7. Name the dependent variable.

• 1. A) Brand of gum

• Name the constant that SpongeBob kept the same.

• 1. B) Person blowing the gum

• 7. Name the independent variable.

Match the following: Identify the independent, dependent variables, and the control group from the experiment below:

The time it takes to run a kilometer depends on the amount of exercise a person gets.

• Something you keep the same.

• Independent variable.

• 1. Amount of exercise.

• Dependent variable.

• The time it takes to run a kilometer.

• Control group.

Tags

NGSS.MS-PS2-2