Science Grade 8 Question Preview (ID: 42785)


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

Melting and evaporation - When a solid is heated
a) It reaches melting point
b) It will change to a liquid
c) All
d) None

What is the gaseous state sometimes called
a) VapourMax
b) Vapour Phase
c) Evaporation
d) None

Vapour phase happens
a) When a liquid solidifies
b) When a liquid evaporates
c) When gases are formed
d) none

Difference between Evaporation and Boiling - Evaporation
a) Evaporation takes place at all temperatures
b) Evaporation occurs on the surface of the liquid
c) All
d) None

Difference between Evaporation and Boiling - Boiling
a) Boiling occurs at a specific temperature (Called Boiling Point)
b) Bubbles form in the liquid
c) Boiling occurs throughout the entire liquid
d) All

When gas changes to a liquid it is called what state
a) Persipertation
b) Condensation
c) Evaporating
d) None

Is condensation the opposite of evaporation?
a) Yes
b) No
c) Maybe
d) -

When temperature of a gas is lowered
a) -
b) It takes energy from the gas particle
c) It provides more energy
d) It allows the particles to move faster

When you cool a liquid
a) You are adding energy to it
b) You are not adding or taking away energy
c) You are removing energy
d) All

When liquid particles loose energy their movement
a) Increases
b) Stays the same
c) Slows down
d) None

When the liquid loses energy the particles no longer move freely
a) The liquid has melted
b) The liquid has evarporated
c) The liquid has solified
d) The liquid has condensed

What does MASS tell you about Matter?
a) How much the mass of an object
b) Mass is measured in Kilograms
c) Small amounts are measured in (g) or (mg)
d) All

What does VOLUME tell us about matter?
a) Volume tells us how much Space is taken up
b) Volume is measured in Litres
c) Calculated by multiplying length, width and height
d) All

What does DESTINY tell us about Matter
a) How tightly packed
b) Destiny is the ratio of mass TO volume
c) All
d) None

Is liquid state less dense than solid state?
a) True
b) False
c) No
d) -

The solid state of water (ICE) is less dense than liquid.
a) Ice in the water molecules are packed in a unique way
b) True
c) None
d) All

Can gases be compressed?
a) Yes, particles can be squeezed closer together to fit into smaller volume
b) Yes, particles can be squeezed closer together to fit into smaller mass
c) Yes, particles can be squeezed closer together to fit into smaller density
d) All

Oil and water are known as ________ when mixed together
a) Immiscible
b) Mixable
c) Mixture
d) None

When oil and water separate this is known as PHASES
a) Oil phase
b) Water phase
c) Both
d) None

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