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Worksheets

AOC Review Level up

Total questions: 30

Worksheet time: 23mins

Name
Class
Date
1.

What is the best process in separating the components of a salt solution?

(a)  

2.

A substance is found to have the following characteristics:


Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water


In what category would the substance be classified?

a)

acid

b)

base

c)

enzyme

d)

fatty acid

3.
Which of the following statements is correct?
a)
Blue litmus paper turns red when placed in a base.
b)
Red litmus paper turns blue when placed in a base.
c)
Blue litmus paper stays blue when placed in an acid.
d)
Red litmus paper stays red when placed in a base.
4.

Which of these pH values represent an acid?

a)

4

b)

8

c)

10

d)

12

5.

When an acid is dissolved in water, it turns red litmus paper blue.

a)

True

b)

False

6.

Which of the following is an acid?

a)

vinegar

b)

bleach

c)

sugar in water

d)

starch in water

e)

toothpaste in water

7.

Which tools are best for separating a mixtures of sand, iron filings, and water?

a)

Hot plate and filter

b)

Tweezers and filter

c)

Filter and magnet

d)

Magnet and hot plate

8.
Type of mixture that DOESN'T HAVE the same composition in every part.
a)
Homogeneous
b)
Heterogeneous
9.
Chocolate milk is an example of a
a)
homogeneous mixture
b)
heterogeneous mixture
10.
A pure substance made up of only one type of atom e.g. oxygen or carbon
a)
element
b)
emulsion
c)
pure substance
d)
compound
11.
A cloudy liquid that contains insoluble particles
a)
suspension
b)
solvent
c)
solute
d)
salt
12.

This diagram represents ___________.

a)

Brownian

b)

Tyndall

c)

Suspension

d)

Colloidal

13.

NAME THE CHANGE

a)

PHYSICAL CHANGE

b)

CHEMICAL CHANGE

14.

NAME THE CHANGE

a)

PHYSICAL CHANGE

b)

CHEMICAL CHANGE

15.

The laboratory apparatus above is used to measure ______________ .

a)

mass

b)

length

c)

volume

d)

temperature

16.

Name this apparatus

a)

Spirit lamp

b)

Burner

c)

Bunsen burner

d)

Automatic flame

17.

Name the use of the given picture.

a)

used for stirring and mixing chemicals

b)

used to heat liquids for evaporation

c)

used to hold several test tubes at one time

18.

What laboratory apparatus are you going to use if you want to pour liquids into containers with small openings?

a)

test tube

b)

evaporating dish

c)

glass funnel

19.

observations help us to draw

a)

scientific notations

b)

scientific conclusions

c)

both

20.

What is the name of this science apparatus?

(a)  

21.

Name this science apparatus.

(a)  

22.
Which is NOT a step in the scientific method?
a)
Make observation
b)
Form a theory
c)
Collect data
d)
Form a hypothesis
23.

The __________________________________ is the organized way scientists answer questions and solve problems.

a)

scientific method

b)

scientific explanation

c)

scientific notation

d)

scientific guesses

24.
Another word for prediction or educated guess is: ________________
a)
hypothesis
b)
conclusion
c)
experiment
d)
data
25.

Which best describes the act of using senses or tools to gather information?

a)

creating a hypothesis

b)

making an observation

c)

summarizing the results

d)

recording the measurements

26.

What should an experimenter do after analyzing data?

a)

carry out the experiment

b)

draw conclusions

c)

observe and infer

d)

identify the problem

27.
Observations made during an experiment are called:
a)
data
b)
problems
c)
conclusions
d)
questions
28.
Why do scientists use the scientific method?
a)
To make sure they get credit for their discoveries.
b)
To make sure their results are valid and can be performed by other scientists.
c)
So that other scientist don't get mad at them
29.
Evidence of Chemical Change.
a)
New Substance 
b)
Size change
c)
State change
d)
Mixture 
30.
Evidence of a physical change.
a)
New substance
b)
Shape Change
c)
Light produced
d)
Gas released.

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