The dependent variable in this experiment is - 

• Number of Bacteria
• Time of Incubation
• Culture Number
• Type of Bacteria

Tags

CCSS.6.SP.B.5B

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs

What is the tool you would use to measure the mass of an apple?

• Metric ruler
• Scale
• Graduated Cylinder
• Triple Beam Balance

Which of the following hypotheses is written correctly?

• Frozen tennis balls will not bounce as high.
• If I heat up a tennis ball it will bounce high.
• If I freeze a tennis ball, then it will not bounce as high.
• If a tennis ball is frozen, then it won't bounce as high as one that is not frozen.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Each day, at the same time of day, I measure the plant's height and record it in my chart.  What variable am I recording?

• Independent Variable
• Dependent Variable
• Constant
• Control

The summary at the end of an experiment that explains the results. 

• conclusion
• procedures
• materials
• responding variable

Observations made during an experiment are called:

• data
• problems
• conclusions
• questions

Tags

NGSS.MS-PS1-2

On what axis should the independent variable always be?

• X
• Y

Tags

NGSS.MS-PS3-1

_______________ is the amount of space an object takes up.

• mass
• volume
• weight
• density

Which of the following is a quantitative observation?

• The bird is very colorful.
• The bird has 4 different colors on him.
• The bird has many, many feathers.
• It is a bird.