CH 1 Physical Science: Science Skills

Question 1

The study of matter, energy, and the interactions between the two through forces and motion is:

Accepted Answer

physics

Question 2

The SI unit for temperature is:

Accepted Answer

Kelvin

Question 3

Which one of the following is the smallest?

Accepted Answer

1 millimeter

Question 4

T/F: The number 6.4 x 10-8 is larger than 5.2 x 105

Accepted Answer

FALSE

Question 5

Expand the number: 3.0 x 108

Accepted Answer

300,000,000

Question 6

Convert 2.5 grams to milligrams:

Accepted Answer

2500 mg

Question 7

Which one of the following is a qualitative observation?

Accepted Answer

The liquid is odorless.

Question 8

How many grams are in a kilogram?

Accepted Answer

1000

Question 9

How many centimeters are in a meter?

Accepted Answer

100

Question 10

The variable that you change in an experiment is called the:

Accepted Answer

independent variable

Question 11

A well-tested explanation for a set of observations or experimental results is called a(n):

Accepted Answer

scientific theory

Question 12

How would you describe the darts on the following dart board?

Accepted Answer

good precision but poor accuracy

Question 13

How do you write 0.000056 in scientific notation?

Accepted Answer

5.6 x 10-5

Question 14

The closeness of a measurement to the actual value being measured is:

Accepted Answer

accuracy

Question 15

When making a line graph, the independent variable is generally plotted on the:

Accepted Answer

x-axis

Question 16

The study of living things is known as:

Accepted Answer

biology

Question 17

The SI unit for mass is:

Accepted Answer

kilogram

Question 18

A gauge of how exact a measurement is:

Accepted Answer

precision

Question 19

Which one of the following is NOT one of the three main branches of science?

Accepted Answer

chemistry

Question 20

A physical or mental representation of an object or event is a(n):

Accepted Answer

model

Question 21

The SI unit for time is:

Accepted Answer

seconds

Question 22

T/F: The two branches of physical science are chemistry and physics.

Accepted Answer

TRUE

Question 23

The SI unit for length is:

Accepted Answer

meter

Question 24

The symbol for milligram is:

Accepted Answer

mg

Question 25

Information that you obtain through your senses:

Accepted Answer

observation

Question 26

Jenny is testing how brand of fertilizer affects plant growth. What controls should she have?

Accepted Answer

amount of sunlight and amount of water

Question 27

T/F: A qualitative measurement of an apple would be that it is round.

Accepted Answer

TRUE

Question 28

Convert 450 g to kg.

Accepted Answer

0.45 kg

Question 29

Which recorded time is the most precise?

Accepted Answer

55.25 s

Question 30

The variable that you measure or observe during an experiment is the:

Accepted Answer

dependent variable

Question 31

How do you write 45,000 in scientific notation?

Accepted Answer

4.5 x 104

Question 32

T/F: Quantitative measurements include both a number and a unit.

Accepted Answer

TRUE

Question 33

What graph would best show the relationship between the mass and volume of several objects?

Accepted Answer

line graph

Question 34

Over time, theories can become laws.

Accepted Answer

FALSE

Question 35

The study of the composition, structure, properties, and reactions of matter is:

Accepted Answer

chemistry

Question 36

What graph is best to show number of students that bought lunch on different days of the week?

Accepted Answer

bar graph

Question 37

Which one of the following is the largest?

Accepted Answer

1 kilometer

Question 38

The type of graph that shows changes that occur in two related variables.

Accepted Answer

line graph

Question 39

A statement that describes an observed pattern in nature without attempting to explain it is a:

Accepted Answer

scientific law

Question 40

The type of graph used to show how part of something is related to the whole:

Accepted Answer

circle graph

Question 41

What graph would best show the components of air? (percent of each gas)

Accepted Answer

circle graph

Question 42

A proposed answer to a question is a(n):

Accepted Answer

hypothesis

Question 43

Jenny is testing how brand of fertilizer affects plant growth. The dependent variable is:

Accepted Answer

plant growth

Question 44

Which one of the following is a scientific model?

Accepted Answer

a globe of earth

Question 45

The type of graph that is useful for comparing a set of measurements.

Accepted Answer

bar graph

Question 46

Jenny is testing how brand of fertilizer affects plant growth. The independent variable is:

Accepted Answer

brand of fertilizer

Question 47

The symbol for kilometer is:

Accepted Answer

km

Question 48

T/F: It is possible to be precise without being accurate.

Accepted Answer

TRUE

Question 49

The goal of the scientific method is to solve a problem or better understand an observed event.

Accepted Answer

TRUE

Question 50

In a controlled experiment,

Accepted Answer

There is only 1 independent variable.

CH 1 Physical Science: Science Skills

Questions 50

CH 1 Physical Science: Science Skills

Questions 50