Free Printable CFA #1

Worksheets

CFA #1

Total questions: 20

Worksheet time: 22mins

Name

Class

Date

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

The type of plant

The amount of sunlight

The type of music

The type of liquid

Can you make a bar chart from the results of a qualitative question?

Yes

If you break glassware during a lab you should

tell the teacher immediately

Clear people out of the area and leave broken glass for a janitor

Tell the teacher on the way out of class at the end of the period

Try to clean it up yourself quickly so you won�t bother anyone

Tie back long hair, secure loose sleeves or other loose articles of clothing

TRUE

FALSE

A beaker is used to measure volume in which metric unit?

Milliliters (mL)

Grams (g)

Meters (m)

Kilograms (kg)

Which SI unit is used to measure length?

mol

m²

When converting between SI prefixes, what should you do if you are moving from smaller to larger units?

move the decimal to the left

move the decimal to the right

do not move the decimal

use dimensional analysis

Convert 17 m to cm:

0.17 cm

0.017 cm

1,700 cm

170 cm

42 L = ___mL

4,200

.0042

4.20

42,000

10.

Keeping your work area neat and clean is important because:

My teacher is a neat-freak

I won't lose my supplies in the clutter.

It keeps the room from looking messy.

It helps prevent accidents.

11.

Keeping your work area neat and clean is important because:

My teacher is a neat-freak

I won't lose my supplies in the clutter.

It keeps the room from looking messy.

It helps prevent accidents.

12.

The one variable in an experiment that is purposely changed by the scientist is the________________.

dependent variable

independent variable

data

control group

13.

The candy was sour.

Qualitative Data

Quantitative Data

14.

What are all the things that are kept the same in an experiment?

controls

data

constants

independent variables

15.

How many variables can be tested in a controlled experiment?

one

two

three

as many as possible

16.

This variable in an experiment is the one being deliberately changed by the scientist.

dependent variable

independent variable

data

control group

17.

Using chipped glassware is permitted during the labs.

True

False

18.

Wash your hands after handling all living organisms.

True

False

19.

End of class procedures

Turn off appliances, water and gas

Return all materials to the appropriate place.

Disposal of chemicals as directed by the teacher.

Clean your area

Wash your hands

20.

What is a hypothesis?

Educated guess

Prediction based upon prior knowledge

I don't know

100 %

CFA #1

Total questions: 20

Worksheet time: 22mins

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