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Worksheets

Quarter 1 Exam 2023

Total questions: 48

Worksheet time: 36mins

Name
Class
Date
1.

A girl wants to know what kind of soil is best for plants. She gives one sand, one compost, and one clay. What is the independent variable?

a)

water

b)

type of plant

c)

sunlight

d)

soil

2.

Angelina set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the dependent variable.

a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
d)
Who set up the experiment (Ms. S, etc)
3.

The one factor that a scientist changes during an experiment. (It affects the results of the experiment).

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

4.

The variable that is measured. It is the result of the experiment.

a)

Controlled Variable

b)

Dependent Variable

c)

Independent Variable

5.

The factors that stay the same throughout the experiment.

a)

Constant

b)

Dependent Variable

c)

Independent Variable

6.

If an object is ​ ​ (a)   than water, the object will ​ (b)   .

Choose from the below words
less dense
float
More dense
the same density
sink
Stay suspended in the water
bounce
more
less
7.

Correctly identify the state of the matter in the middle cylinder.

a)

Solid

b)

Liquid

c)

Gas

1
1)
8.

Jack had a beaker of warm water filled to the 50 ml line. He measured 20 mg of salt using a triple beam balance and added it to his beaker of warm water. Jack stirred using a spoon. After a short time, the salt disappeared. What happened?

a)

The salt dissolved.

b)

The salt evaporated.

c)

The salt condensed.

d)

The salt changed it's chemical make up and became water.

9.

The two types of properties used to classify matter are (a)   and chemical.

10.

(a)   properties change the composition of the substance.

11.

When two or more substances are put together.

a)

Volume

b)

Density

c)

Mixture

d)

Mass

12.

The amount of matter in an object is a measure of the object's ________________.

a)

volume

b)

density

c)

mass

d)

solubility

13.
What is a property?
a)
Something that describes matter
b)
a definition
c)
the space matter takes up
d)
the weight of matter
14.

The temperature at which a substance changes from a solid to a liquid.

a)

melting point

b)

boiling point

c)

ductility

d)

buoyancy

15.

the ability of a substance to give off a certain smell.

a)

boiling point

b)

density

c)

odor

d)

melting point

16.

The ability of a substance to dissolve in another substance.

a)

color

b)

solubility

c)

hardness

d)

odor

17.

What is a substance made of two or more elements that are chemically combined called?

a)

A. element

b)

B. compound

c)

C. mixture

d)

D. solution

18.

Is salt (NaCI) a compound or an element?

a)

Compound

b)

element

19.

A substance that cannot be broken down into any other substance by ordinary chemical means is called

a)

a molecule.

b)

a mixture.

c)

an element.

d)

a compound.

20.

Two or more physically combined substances form

a)

a compound.

b)

an acid.

c)

an element.

d)

a mixture.

21.

A substance that contains only one type of atom is a(n)

a)

compound

b)

element

c)

heterogeneous mixture

d)

homogeneous mixture

22.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
23.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
24.

What type of mixture is this

a)

heteregenous

b)

homogeneous

25.

In which mixture can you not see all of the parts?

a)

homogeneous

b)

heterogeneous

26.

Identify which images are HETEROGENEOUS MIXTURES! (Check all that apply)

a)
b)
c)
d)
27.
Vinegar
a)
Heterogeneous
b)
Homogeneous
28.
Which subatomic particles contribute the most to the mass of an atom?
a)
Protons, Neutrons, Electrons
b)
Protons only
c)
Protons and Electrons
d)
Protons and Neutrons
29.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
30.
An element with a mass number of 11 and an atomic number of 5 has how many neutrons?
a)
11
b)
5
c)
6
d)
16
31.
Which letter represents a proton?
a)
A
b)
B
c)
C
d)
D
32.
Which letter represents a neutron?
a)
A
b)
B
c)
C
d)
D
33.
Which letter represents an electron?
a)
A
b)
B
c)
C
d)
D
34.
Which letter represents the nucleus?
a)
A
b)
B
c)
D
d)
E
35.
Which subatomic particle has a positive (+) charge?
a)
Neutron
b)
Proton
c)
Electron
36.
Which subatomic particle has a negative (-) charge?
a)
Proton
b)
Electron
c)
Neutron
37.
Which subatomic particle has a neutral or no charge?
a)
Proton
b)
Electron
c)
Neutron
38.
The number at the bottom of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
chemical symbol
d)
element name
39.
The number at the top of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
Chemical Symbol
d)
Element Name
40.

What is the atomic mass of Neon?

a)

10

b)

20.18

c)

10.18

d)

30.18

41.

Where in an atom are the electrons located?

a)

inside the nucleus

b)

outside the nucleus

42.

Explain the structure of the atom

a)

There is a tiny nucleus and a large electron cloud filled with empty space

b)

There is a tiny nucleus and a tiny electron cloud

c)

The nucleus is bigger than the electron cloud

d)

The electron cloud is made of protons and electrons, the nucleus has neutrons

43.

What kind of change is burning wood?

a)
b)
44.

What kind of change is a melting popsicle?

a)
b)
45.
KMnO4
How many atoms of oxygen are in this molecule?
a)
1
b)
2
c)
4
d)
6
46.

When a PRECIPITATE forms, this is a sign of a...

a)

Chemical Change

b)

Physical Change

c)

Atomic Charge

d)

Water Change

47.
How many nitrogen atoms does NH3 have?
a)
1
b)
2
c)
3
d)
4
48.
In this image, what are the information in red is called the_______.
a)
Product
b)
Reactant
c)
Chemical Subscript
d)
Coefficient

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