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Science Grade 8
Test Description: Science grade 8
Instructions: Answer all questions to get your test result.
1) What is matter
A
All
B
Takes up space
C
Occupies volume
D
Anything that has mass
2) What are the different types of matter that exist on Earth?
A
None
B
Made up of one or more chemical elements
C
Made up of atoms
D
Made up of compounds
3) What does each element have
A
Atomic number with a fixed place on the periodic table
B
Unique name
C
All
D
Chemical symbol
4) Who created the phrase Atom?
A
Democritus (460-370 BC)
B
None
C
Scientits
D
Democritus
5) How do Atoms differ?
A
They are easily visible with the eye
B
None
C
They are different in size
D
All
6) Was Atoms reintroduced
A
False
B
No
C
True
D
Maybe
7) Who introduced Atoms and when?
A
James Dalton
B
John Dalton in 1803
C
The world
D
None
8) What is another name for elements?
A
Space
B
Postulates
C
Oxygen
D
Vapour
9) Elements are
A
Atoms of different elements have different masses
B
indivisible, minute particles called atoms
C
all
D
Atoms of a given element are identical
10) What is the periodic Table?
A
Chemical properties of elements
B
All
C
Represents patterns observed in
D
None
11) What is the periodic Table?
A
All
B
Each element has a fixed position on the table
C
Elements are arranged in order of increasing atomic number
D
None
12) What is a scientific model
A
The oxygen we breathe
B
The atmosphere
C
None
D
Set of ideas that tells us a story about something in the world
13) Atoms can be seen with the naked eye?
A
False
B
True
C
All
D
None
14) Are all atoms made up of sub-atomic particles
A
Maybe
B
No
C
True
D
False
15) What does sub-atomic mean
A
Divided into
B
Smaller than the atom
C
Larger than the entire atom
D
None
16) The atom is made up of how many different kinds
A
4
B
1
C
2
D
3
17) What are the 3 different kinds within the Atom?
A
Neutron
B
All
C
Proton
D
Electron
18) Define Proton
A
None
B
Deep inside the atom zone called the nucleus which are positively charged
C
They don't form part of the Atom
D
They are not charged on the edge of the atom
19) What does charge mean
A
None
B
To represent the property these particles have
C
They are not charged
D
All
20) Define Neutron
A
With protons form tightly packed nucleus at the centre of the Atom
B
Particles are neither negatively or positively charged
C
All
D
They are neutral
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