1. Bell Ringer What unit measures length? What unit measures mass?
What unit measures weight?
What unit measures volume of liquids?
What does it mean to observe?

2. What is Physical Science?
__________is the way of learning about the natural world.
_____________is the study of matter, energy, and the changes they undergo.
_______is anything that has mass and takes up space.
________ is the ability to do work.

3. _________is the study of the properties of matter and the changes they undergo.
________is the study of matter and energy and how they interact.

4. How Scientists Think…
They use skills of observing, inferring, and predicting to learn more about the natural world.

5. Observing
Observing means using one or more ________to gather information.
Two Types:
Quantitative observation
Qualitative observation

6. ______________________ involves numbers.
Example: measuring your height or weight.
____________________ describing what you see; doesn’t involve numbers.
Example: Noticing that the ball is round or the stove is hot

7. Inferring When you explain your observation, you are inferring.
To infer is to make a hypothesis based on what you observed.
Example: If you come in and do not see the Bell Ringer up on the projector, you would probably infer that you will not have to do a Bell Ringer today.

8. Predicting
Predicting means making a forecast of what will happen in the future based on past experiences or evidence.
Example: If Charles continues to rob stores, he will get caught. OR
It’s cloudy outside, so it will probably rain.

9. Twizzler Lab

10. Question
How can I identify the properties of a Twizzler using both qualitative and quantitative observations?