Quiz about CHEM_U1_TestReview

Question 1

____ is the systematic study of the structure and behavior of the natural world through observation and experiment.

Accepted Answer

science

Answer

theory

Answer

controlled experiment

Answer

law

Answer

variable

Question 2

_ is a concise statement based on repeated experimental

observation that describes some aspect of the world.

Accepted Answer

law

Answer

science

Answer

theory

Answer

controlled experiment

Answer

hypothesis

Question 3

_ is a detailed explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment.

Accepted Answer

theory

Answer

science

Answer

controlled experiment

Answer

law

Answer

hypothesis

Question 4

_ is an educated guess or prediction.

Accepted Answer

hypothesis

Answer

science

Answer

theory

Answer

controlled experiment

Answer

law

Question 5

A __ has only two variables: the independent variable and the dependent variable.

Accepted Answer

controlled experiment

Answer

control group

Answer

theory

Answer

law

Answer

constant

Question 6

__ are things that do not change in the experiment.

Accepted Answer

constant

Answer

control group

Answer

theory

Answer

controlled experiment

Answer

law

Question 7

__ is the standard by which the test results can be compared.

Accepted Answer

control group

Answer

variable

Answer

controlled experiment

Answer

law

Answer

constant

Question 8

__ is a factor that changes during the experiment.

Accepted Answer

variable

Answer

control group

Answer

controlled experiment

Answer

law

Answer

constant

Question 9

TRUE or FALSE:

A scientific theory can become a scientific law if there is enough evidence.

Accepted Answer

FALSE

Answer

TRUE

Question 10

TRUE or FALSE:

A scientific hypothesis can become a scientific theory if there is enough evidence.

Accepted Answer

TRUE

Answer

FALSE

Question 11

TRUE or FALSE:

A Distance-Time graph has Distance on the X-axis and Time on the Y-axis.

Accepted Answer

FALSE

Answer

TRUE

Question 12

Juan is testing how watering plants affects their growth rate. The first plant does not receive any water. The second plant gets 100mL of water each day. The third plant gets 500mL of water each day. The fourth plant gets 1000mL of water each day. The plants are the same type of seeds in the same type of pots and soil, in the same greenhouse.

What is the INDEPENDENT VARIABLE?

Accepted Answer

amount of water

Answer

growth rate

Answer

type of plants

Answer

environmental conditions

(like temperature, light, humidity, etc.)

Answer

the first plant (no water)

Question 13

Juan is testing how watering plants affects their growth rate. The first plant does not receive any water. The second plant gets 100mL of water each day. The third plant gets 500mL of water each day. The fourth plant gets 1000mL of water each day. The plants are the same type of seeds in the same type of pots and soil, in the same greenhouse.

What is the DEPENDENT VARIABLE?

Accepted Answer

growth rate

Answer

amount of water

Answer

type of plants

Answer

environmental conditions

(like temperature, light, humidity, etc.)

Answer

the first plant (no water)

Question 14

Juan is testing how watering plants affects their growth rate. The first plant does not receive any water. The second plant gets 100mL of water each day. The third plant gets 500mL of water each day. The fourth plant gets 1000mL of water each day. The plants are the same type of seeds in the same type of pots and soil, in the same greenhouse.

What is CONSTANT? (choose 2)

Accepted Answer

type of plants

Accepted Answer

environmental conditions

(like temperature, light, humidity, etc.)

Answer

amount of water

Answer

growth rate

Answer

the first plant (no water)

Question 15

Juan is testing how watering plants affects their growth rate. The first plant does not receive any water. The second plant gets 100mL of water each day. The third plant gets 500mL of water each day. The fourth plant gets 1000mL of water each day. The plants are the same type of seeds in the same type of pots and soil, in the same greenhouse.

What is the CONTROL GROUP?

Accepted Answer

the first plant (no water)

Answer

amount of water

Answer

growth rate

Answer

the second plant (100mL)

Answer

the fourth plant (1000mL)

Question 16

Which type of graph is best for showing continuous change?

Accepted Answer

line

Answer

bar

Answer

pie

Answer

any of these

Question 17

Which type of graph is best for comparing values?

Accepted Answer

bar

Answer

line

Answer

pie

Answer

any of these

Question 18

Which type of graph is best for showing parts of a whole or percentages?

Accepted Answer

pie

Answer

bar

Answer

line

Answer

any of these

Question 19

In a direct relationship, one variable increases while the other variable __.

Accepted Answer

increases

Answer

decreases

Answer

stays constant

Answer

is unknown

Question 20

In an indirect relationship, one variable increases while the other variable __.

Accepted Answer

decreases

Answer

increases

Answer

stays constant

Answer

is unknown

Question 21

The independent variable in any experiment is always graphed on the __ axis.

Accepted Answer

x

Answer

y

Answer

z

Answer

none of these

Answer

any of these

Question 22

The dependent variable in any experiment is always graphed on the __ axis.

Accepted Answer

y

Answer

x

Answer

z

Answer

none of these

Answer

any of these

Question 23

What lab tool do we use to measure the volumes of liquids?

Accepted Answer

graduated cylinder

Answer

beaker

Answer

scale (balance)

Answer

meter stick

Answer

thermometer

Question 24

What lab tool do we use to measure the mass of objects?

Accepted Answer

scale (balance)

Answer

graduated cylinder

Answer

beaker

Answer

meter stick

Answer

thermometer

Question 25

A student wants to identify a rock by first calculating its density. First, she put the rock on a balance and found its mass to be 95g. Then, she fills a graduated cylinder to exactly 50mL with water. After she put the rock in the cylinder, the water level went up to 60mL.

What is the volume of the rock? _ _ _ _

Include the symbol for the unit. Do not type a space.

Accepted Answer

10 mL

Answer

110 mL

Answer

35mL

Answer

45mL

Answer

none of these

Question 26

What does the slope of a Volume-Mass graph tell you about the object? (Volume is on the y-axis and mass is on the x-axis.)

Accepted Answer

its density

Answer

its weight

Answer

its speed

Answer

its area

Answer

none of these

Question 27

What is wrong with this graph? Select all that apply.

There may be more things wrong with the graph then are listed below.

Accepted Answer

The y-axis doesn't start at zero.

Accepted Answer

The x- and y-axes both need labels (titles)

Accepted Answer

x and y axis both need units in ( )

Answer

The line does not go through the points.

Answer

The x-axis scale is uneven.

Question 28

Calculate the slope of the line shown.

Accepted Answer

2

Answer

4

Answer

1

Answer

1/2

Answer

none of these

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