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Mixing Matter
Test Description: Science Test
Instructions: Answer all questions to get your test result.
1) What are all things made of?
A
both
B
atoms
C
matter
D
neither
2) What do pure iron and pure gold have in common?
A
They have the same number of electrons and protons.
B
They are each made up of a single element.
C
They are both chemical compounds.
D
They both only exist as solids.
3) What are the three kinds of particles inside an atom?
A
helium, carbon, and hydrogen
B
molecules, compounds, and elements
C
core, mantle, and crust
D
protons, neutrons, and electrons
4) Scientists identify an ammonia molecule as NH₃. How many hydrogen atoms are there in one molecule of ammonia?
A
There is not enough information to determine the answer.
B
three
C
one
D
four
5) How would scientists identify a molecule that contains two hydrogen (H) atoms, one sulfur (S) atom, and four oxygen (O) atoms?
A
HS₄O₂
B
Hh₂SOooo₄
C
H₂SO₄
D
HHSOOOO
6) Molecule is to atoms as jigsaw puzzle is to __________.
A
the table upon which the puzzle is assembled
B
the puzzle's box
C
the picture shown on the puzzle
D
the puzzle's pieces
7) When moving from a solid to a gas, the particles move about at a __________ pace.
A
faster
B
slower
8) Which of these is an example of a physical change?
A
an apple turning brown when exposed to air too long
B
spoiled food smelling bad in a trash can
C
large rocks getting crushed to be used as gravel
D
fireworks exploding in bright flashes of color
9) Which of these is an example of a chemical change?
A
raisins and peanuts being mixed in a bowl
B
glass bottles breaking when dropped
C
rust forming on metal after it gets wet
D
pouring chocolate syrup over frozen strawberries
10) After baking a cake, it is hard to turn the cake back into its original ingredients. Why is this so?
A
The cake is made up of molecules.
B
The cake has gone through chemical changes.
C
The original ingredients no longer exist within the cake.
D
Heat makes it impossible to separate all materials once they are combined.
11) The more ________ an atom has, the more it will weigh.
A
electrons and protons
B
protons and neutrons
C
nuclei
D
electrons
12) What kind of chemical compound could be made just by combining carbon (C) and oxygen (O) atoms?
A
Water (H₂O)
B
Ozone (O₃)
C
Carbon dioxide (CO₂)
D
Calcium carbonate (CaCO₃)
13) You can use a graduated cylinder to find the _____ of a solid by measuring the amount the water goes up.
A
density
B
compound
C
matter
D
volume
14) The number of ____ in an atom tells us what element it is.
A
electrons
B
nucleus
C
protons
D
neutrons
15) All elements have ____ properties
A
different
B
similar
16) Where are the electrons, protons, and neutrons in relation to the nucleus?
A
The electrons are in the nucleus, while the protons and neutrons move around it.
B
The protons, neutrons, and electrons are in the nucleus.
C
The protons and neutrons are in the nucleus, while the electrons move around it.
17) Could water be an element if it can be broken down into two simpler gases?
A
no
B
yes
*select an answer for all questions
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