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Classroom Chemistry- matter/atoms/scientific method

Total questions: 57

Worksheet time: 1hrs 1mins

Name
Class
Date
1.
What kind of change is occurring to the screen ?
a)
Physical
b)
Chemical
2.
What kind of change is occurring when the candle is melting ?
a)
Chemical
b)
Physical
3.
What kind of change is occurring when baking cookies ?
a)
Chemical
b)
Physical
4.
What kind of change is occurring to the eggs ?
a)
Chemical
b)
Physical 
5.
What kind of change is occurring to the water ?
a)
Chemical
b)
Physical
6.
What kind of change is occurring to the glow stick?
a)
Chemical
b)
Physical
7.
What kind of change is occurring to the marshmallow ?
a)
Chemical
b)
Physical
8.
What kind of change is occurring to the chocolate ?
a)
Chemical
b)
Physical
9.
What kind of change is occurring to the newspaper ?
a)
Chemical
b)
Physical
10.
What kind of change is occurring to the snowman ?
a)
Chemical
b)
Physical
11.
The study of matter, it properties, composition and changes is called
a)
evaporation
b)
interaction
c)
science
d)
chemistry
12.
Something that takes up space and has mass.
a)
volume
b)
matter
c)
mass
d)
density
13.
A state of matter that has a definite volume and shape.
a)
solid
b)
liquid
c)
gas
d)
matter
14.
What are the three states of matter?
a)
solid, volume, mass
b)
density, volume, mass
c)
solid, liquid, gas
d)
density, gas, volume
15.
The amount of matter something contains is its ______________.
a)
gas
b)
solid
c)
weight
d)
mass
16.
The particles in a solid are...
a)
vibrating and closely packed together
b)
vibrating and loosely packed together
c)
not moving at all
17.
Substance with NO definite volume or shape...
a)
solid
b)
liquid
c)
gas
18.
In which state of matter are the molecules packed tight?
a)
gas
b)
solid
c)
liquid
19.
Which of the following IS a clue that a chemical change has occurred? 
a)
State of matter change
b)
Size Change
c)
Change in temperature
d)
Shape change
20.

Which of the following is not a clue that a chemical reaction has taken place?

a)

Changing size

b)

Changing color

c)

A gas being formed

d)

Formation of a precipitate

21.
Which of the following IS a clue that a chemical change has occurred? 
a)
State of matter change
b)
Size Change
c)
Change in temperature
d)
Shape change
22.
What is an example of a Chemical change?
a)
Ripped paper 
b)
boiled egg
c)
cracked egg
d)
sugar in water
23.
Which is a physical change?
a)
burning match 
b)
vinegar in baking soda 
c)
melting butter
d)
cooking an egg
24.
A change in the size, shape, or state of matter.
a)
chemical change
b)
physical change
c)
chemical reaction
d)
electron change
25.
Which of these is an example of a new substance being formed?
a)
a nail rusting
b)
a wall being painted
c)
water changing to steam
d)
paper being folded
26.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
27.
A testable explanation to a problem that has not yet been tested. 
a)
data
b)
theory
c)
hypothesis
d)
fact
28.
Testing a hypothesis often involves a(n):
a)
answer
b)
experiment
c)
problem
d)
safety check
29.
What is a hypothesis?
a)
A hypothesis is the right answer to an experiment.
b)
A hypothesis is the wrong answer to an experiment.
c)
A hypothesis is an educated guess.
d)
I don't know.
30.
The summary at the end of an experiment that explains the results. 
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
31.
The name of the information that you get from your experiment (you organize it into charts and graphs).
a)
observations
conclusion
b)
data
c)
variables
d)
hypothesis
32.
The first step of the scientific method is to make a(n) ____________ of something in the world.
a)
observation
b)
paper airplane
c)
hypothesis
d)
conclusion
33.
Another word for prediction or educated guess is: ________________
a)
hypothesis
b)
conclusion
c)
experiment
d)
data
34.
The information you record in an experiment is called your ____________.
a)
data
b)
conclusions
c)
notebook
d)
inquiry
35.
In a well designed experiment, you should change how many variables?
a)
only one
b)
no more than two
c)
none at all
d)
as many as are needed
36.

If testing how temperature of water affects the speed of rusting, what is the Manipulated Variable?

a)

Temperature of water

b)

Type of liquid

c)

Speed of rusting

d)

Type of nail

37.

If testing how temp. of water affects the speed of rusting, what is the Responding Variable?

a)

Temperature of water

b)

Type of liquid

c)

Speed of rusting

d)

Type of nail

38.

Does the type of soda matters when I add Mentos to make bubbles? The Manipulated Variable is...

a)

Temperature of soda

b)

Type of soda

c)

Number of Mentos added

d)

How many bubbles

39.

I'm testing what the effect of saltwater vs. pure water is on gummy bears. The Manipulated Variable is ...

a)

Color of gummy bear

b)

Salt/no salt

c)

Size of gummy bear after 2 hrs

d)

Starting temperature of liquid

40.

Does the type of soda matters when I add Mentos to make bubbles? The Responding Variable is...

a)

Temperature of soda

b)

Type of soda

c)

Number of Mentos added

d)

How many bubbles

41.

What is a Manipulated Variable?

a)

The variable you test by changing it

b)

Something you could change but don't

c)

The results/what you measure

d)

Something you hold constant in the experiment

42.

What is a Responding Variable?

a)

The variable you test by changing it

b)

Something you could change but don't

c)

The results/what you measure

d)

Something you hold constant in the experiment

43.

What is a controlled variable?

a)

a variable that is always kept the same in the experiment

b)

a varible that is purposely changed

c)

A variable that is measured.

d)

trying to be controlling.

44.
Maria wants to know if birds prefer to eat in one place over another. She makes three feeders out of 2-liter bottles and paints all of them red. She fills each of the feeders with the same amount of mixed birdseed, and plans to keep the feeders out for 10 days before measuring how much seed is eaten from each feeder. She puts each of the feeders in her back yard: one feeder in a large dead tree, another feeder she sits on the dog house, and the last she sits in a small bushy tree.
What is the controlled variable?
a)
Location of bird feeder
b)
Amount of birdseed eaten
c)
Type of birdseed
45.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
46.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
47.
An atoms overall charge is 
a)
positive 
b)
depends on its mood 
c)
neutral 
d)
negative 
48.
The smallest particle of any particular type of matter is known by which of the following terms?
a)
Compound
b)
Atom
c)
Chemical
d)
Element
49.
all matter is made of what 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
50.
If an atom has 3 electrons, how many protons does it have?
a)
1
b)
2
c)
4
d)
3
51.
If the number of protons equal the number of _____, the atom will have no charge
a)
protons
b)
neutrons
c)
electrons
d)
nucleus
52.
the central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
53.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
54.

In the center of the atom is the -

a)

proton

b)

neutrons

c)

nucleus

d)

electrons

55.

What spins in orbit around the outside of the nucleus?

a)

electrons

b)

protons

c)

neutrons

d)

nucleus

56.

Which particles are found in the nucleus of an atom?

a)

protons and electrons

b)

electrons and neutrons

c)

protons and nucleus

d)

neutrons and protons

57.

Atoms fit together with other atoms to make up ____________.

a)

particles

b)

elements

c)

super atoms

d)

matter

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