Scientific Investigations Review

The number of times an experiment is repeated.

• Independent variable

• Constants

• Sample size

• Trials

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS2-2

Which of the following should be done first in a scientific investigation/method?

• Propose a hypothesis

• Analyze data

• Conduct an experiment

• Identify a question or problem

An educated guess or prediction about what will happen in an experiment is... (Usually an "If / Then" Statement)

• Hypothesis

• Materials

• Procedure

• Conclusion

Most scientific investigations/ methods begin with this

• variable

• conclusion

• question

• science

Commonly conducted to test a hypothesis

• variable

• science

• data

• experiment

Tags

NGSS.MS-PS2-2

A student is investigating the time it takes for different objects to reach the ground after they are dropped. What is the variable in this investigation ?

• weight of each object

• object being dropped

• distance to the ground

• time to reach the ground

Which of the following is an observation about grasshoppers that a science class could have made on their nature walk?

• The grasshoppers are green with long back legs and antennae.

• The grasshoppers will live longest in a container filled with plants.

• The grasshoppers will probably eat more grass than tree leaves.

• The grasshoppers all hatched from eggs laid the year before.

During experiments, scientists write down what they see which is called...

• Hypothesis

• Observations

• Materials

• Procedure

Tags

NGSS.3-PS2-2

Which instrument is used to measure the mass of an object?

• Graduated Cylinder

• Beaker

• Balance Scale

• Stopwatch

Which instrument is used to measure the volume of a liquid?

• Thermometer

• Balance Scale

• Meter Stick

• Graduated Cylinder