Science Grade 8 Question Preview (ID: 42780)


Science Grade 8. TEACHERS: click here for quick copy question ID numbers.

What is matter
a) Takes up space
b) Anything that has mass
c) Occupies volume
d) All

What are the different types of matter that exist on Earth?
a) Made up of one or more chemical elements
b) Made up of compounds
c) Made up of atoms
d) None

What does each element have
a) Unique name
b) Chemical symbol
c) Atomic number with a fixed place on the periodic table
d) All

Who created the phrase Atom?
a) Democritus (460-370 BC)
b) Scientits
c) Democritus
d) None

How do Atoms differ?
a) They are easily visible with the eye
b) They are different in size
c) None
d) All

Was Atoms reintroduced
a) True
b) False
c) No
d) Maybe

Who introduced Atoms and when?
a) The world
b) John Dalton in 1803
c) James Dalton
d) None

What is another name for elements?
a) Vapour
b) Space
c) Postulates
d) Oxygen

Elements are
a) indivisible, minute particles called atoms
b) Atoms of a given element are identical
c) Atoms of different elements have different masses
d) all

What is the periodic Table?
a) Represents patterns observed in
b) Chemical properties of elements
c) All
d) None

What is the periodic Table?
a) Each element has a fixed position on the table
b) Elements are arranged in order of increasing atomic number
c) All
d) None

What is a scientific model
a) The atmosphere
b) Set of ideas that tells us a story about something in the world
c) The oxygen we breathe
d) None

Atoms can be seen with the naked eye?
a) False
b) True
c) None
d) All

Are all atoms made up of sub-atomic particles
a) False
b) True
c) No
d) Maybe

What does sub-atomic mean
a) Divided into
b) Larger than the entire atom
c) Smaller than the atom
d) None

The atom is made up of how many different kinds
a) 1
b) 2
c) 4
d) 3

What are the 3 different kinds within the Atom?
a) Electron
b) Proton
c) Neutron
d) All

Define Proton
a) Deep inside the atom zone called the nucleus which are positively charged
b) They are not charged on the edge of the atom
c) They don't form part of the Atom
d) None

What does charge mean
a) They are not charged
b) To represent the property these particles have
c) All
d) None

Define Neutron
a) Particles are neither negatively or positively charged
b) They are neutral
c) With protons form tightly packed nucleus at the centre of the Atom
d) All

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