What is the measurement of the gray rectangle using the correct number of estimated digits according to the tool used?

• 1.30

• 1.0

• 1.3

• 1.38

• 1.5

Mass is measured in

• grams
• liters
• meters
• g/cm3

What is the volume? Use the correct number of estimated digits.

• 50.6

• 56.0

• 56.00

• 57.7

• 56

What is the length of the piece of wood? Use the correct number of estimated digits.

• 4.0

• 4

• 4.1

• 4.10

What is the volume of the water?

Use the correct number of estimated digits.

• 20.6

• 21.61

• 21.6

• 21

The parts of the experiment that must be kept the same.

• Constants (controlled variables)

• Independent variable

• Dependent variable

• Conclusion

Maya designed an experiment to answer the following question: How does the amount of water given to a

bean seed affect how tall it grows?

In this experiment, what variable should Maya CHANGE (what is the independent variable)?

• the amount of water

• the kind of plant

• the type of soil

• the amount of sunlight it gets

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Which axis of a graph should be labeled with the independent variable?

• X-axis

• Y-axis

Tags

NGSS.MS-PS3-1

Esther became interested in insulation while her parent’s new house was being built. She decided to determine which insulation transferred the least heat. She filled each of 5 jars half-full with water.

She sealed each jar with a plastic lid.Then she wrapped each jar with a different kind of insulation. She put the jars outside in the direct sunlight. Later, she measured the temperature of the water in each jar. What is the independent variable?

• The type of insulation

• The temperature of the water

• Number of houses

• The amount of sunlight

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

How many variables should you change in an experiment?

• none
• only 1

• 2 or more
• depends on the type of experiment