Chapter 1 Introduction to Physical Science

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1

What three skills do scientists use to learn more about the natural world?

Observing, Inferring, and Predicting

2

What is the study of matter, energy, and the changes they undergo?

Physical Science

3

Physical Science is divided into two main branches. What are they?

Chemistry and Physics

4

What skill is based on reasoning from what you already know?

Inferring

5

What does it mean to predict?

To make a forecast of what will happen in the future based on past experience or evidence.

6

What skill involves using one or more senses to gather information?

Observing

7

What steps are involved in the process of inquiry?

Posing questions, developing hypotheses, designing experiments, collecting and interpreting data, drawing conclusions, and communicating ideas and results.

8

What is a factor that can be measured in an experiment?

parameter

9

An investigation in which only one parameter is manipulated at a time is called what?

Controlled Experiment

10

A well-tested explanation for a wide range of observations or experimental results is a...?

Scientific Theory

11

The variable parameter that is expected to change because of the manipulate variable is the...?

responding variable

12

A statement that describes what scientists expect to happen every time under a particular set of conditions is...?

Scientific Law

13

What is the basic SI unit of length?

meter (m)

14

What is mass?

The amount of matter an object contains.

15

What is weight?

The measure of the force of gravity on you.

16

What is a meniscus?

The curve on the top surface of water in a graduated cylinder.

17

How is volume calculated?

Length x Width x Height

18

How is density calculated?

Mass/Volume

19

What is accuracy?

How close a measurement is to the actual value.
Example: A dart on the bulls-eye

20

What is reproducibility?

How close a group of of measurements are to each other.
Example: Five darts in the same spot

21

What is the x-axis?

horizontal axis

22

What is the y-axis?

vertical axis

23

What is the origin?

(0,0)

24

What is a coordinate?

A pair of numbers used to determine the position of a point on a graph.
Example: (2,4)

25

What is slope?

Rise over run, how much y changes for every change in x.

26

What shows the overall trend of the data from an experiment?

line of best fit

27

In the event that a glass beaker breaks during a lab, the first thing you should do is?

Tell your teacher