Intro to Science

Why do models change over time?

• Because the person who created the model dies

• Because of collaboration and new evidence

• Because of consensus and disagreements

• Because of a black box

Tags

NGSS.MS-ETS1-4

If you were to travel to the moon, your mass would ________, but your weight would __________. 

• decrease; increase

• remain the same; decrease

• remain the same; increase

• increase; decrease

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

When you walk outside one morning, you observe that the ground is wet. You reason that it must have rained the night before. This reasoning is called ________.

• an observation

• an inference

• a prediction

• None of the above

Understanding how the eye works is part of science. We have used that knowledge to develop correctional lenses. These are an example of a(n) _______.

• technology

• science

• model

• system

Tags

NGSS.MS-ETS1-1

How much water is in the graduated cylinder?

• 76 mL

• 77 mL

• 78 mL

• 79 mL

This student’s data is ____________. The accepted freezing point of water is 0˚C.

• precise

• accurate

• precise  & accurate

• neither

What is the Scientific Method?

• An experimental method

• Used to acquire knowledge

• Involves observation and inference

• All of the above

Tags

NGSS.MS-LS1-1

An educated guess could also be called a(n) . . .

Choose all that apply

• Hypothesis

• Inference

• Theory

• Observation

What is a hypothesis?

• the thing changed on purpose in the experiment

• an explanation about what you observed

• using your 5 senses to gather data

• an educated guess about the outcome of an experiment

The penguins are black and white.

• Qualitative Observation

• Inference

• Hypothesis

• Quantitative Observation