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WorksheetsÔn tập Khoa học ck1_ 23-24
Total questions: 36
Worksheet time: 18mins
Matter can exist in different
states.
TRUE
FALSE
In a solid, particles are tightly
packed and vibrate in place.
TRUE
FALSE
Boiling is slower than
evaporation.
TRUE
FALSE
Sublimation is the process of a
gas changing directly into a solid.
Thăng hoa là một quá trình
khí chuyển trực tiếp thành chất rắn.
TRUE
FALSE
Freezing and melting occur at
the same temperature.
TRUE
FALSE
Condensation(SỰ NGƯNG TỤ) is the process of
a liquid changing into a gas.
TRUE
FALSE
The melting point of a pure
solid can vary.
TRUE
FALSE
Evaporation (SỰ BAY HƠI) only takes place
at the surface of a liquid.
TRUE
FALSE
Boiling requires less heat
energy than evaporation (BAY HƠI)
TRUE
FALSE
Condensation (SỰ NGƯNG TỤ) involves
particles getting closer together.
TRUE
FALSE
What is matter?
Something that occupies space
Something that has mass
Both a and b
Neither a nor b
Which state of matter has a definite shape
and volume?
Solid
Liquid
Gas
None of the above
What happens to the particles in a solid
when it melts (TAN CHẢY)?
They move faster and spread out
They vibrate (rung động) and move more
They get closer together
None of the above
What happens to the particles in a solid
when it freezes (ĐÔNG ĐẶC)?
They move faster and spread out
They vibrate (rung động) and move more
They get closer together
None of the above
Which change of state requires an energy
transfer from the substance to the
environment?
Melting (tan chảy)
Boiling (đun sôi)
Evaporation (bay hơi)
Condensation (ngưng tụ)
Which change of state involves a change
from a gas to a liquid?
Melting (tan chảy)
Boiling (đun sôi)
Evaporation (bay hơi)
Condensation (ngưng tụ)
What is the temperature at which a liquid
changes into a solid called?
Melting point
Boiling point
Freezing point
Condensation point
What happens to the particles in a liquid
when it freezes?
They move faster and spread out
Boiling (đun sôi)
Evaporation (bay hơi)
Sublimation (thăng hoa)
How does evaporation (SỰ BAY HƠI) differ from boiling?
Evaporation is faster than boiling.
Evaporation produces bubbles, while boiling
does not.
Evaporation takes place at the surface only,
while boiling occurs throughout the liquid.
Evaporation requires less heat energy than
boiling.
Which change of state is a physical change
that can be reversed?
Melting
Boiling
Evaporation
All of the above
Physical changes involve
the formation of new substances (CHẤT)
TRUE
FALSE
Changing the shape of an
object is an example of a physical change.
TRUE
FALSE
Chemical changes affect
only the appearance of matter.
TRUE
FALSE
Freezing water to get ice is a
chemical change.
TRUE
FALSE
Rusting of iron (RỈ SẮT) is a physical
change.
TRUE
FALSE
Mixing ingredients (NGUYÊN LIỆU) and
baking a cake is a physical change.
TRUE
FALSE
Burning wood is an
example of a chemical change.
TRUE
FALSE
Which of the following is an example of a
physical change?
Burning wood
Melting ice
Rusting iron
What happens when you cut a piece of
paper into smaller shapes?
A chemical change occurs.
The paper disappears.
It is a physical change.
When you mix vinegar and baking soda
together, what type of change occurs?
A chemical change occurs.
The paper disappears.
No change happens
What is the result of burning a piece of
paper?
The paper turns into water.
The paper undergoes a physical change.
The paper undergoes a chemical change.
When you freeze water to make ice cubes,
what type of change occurs?
Chemical change
Physical change
No change happend
What happens when you mix oil and water
together?
Chemical change
Physical change
No change happend
When you crumple (vò nát) a piece of paper and
then unfold it, what type of change occurs?
Chemical change
Physical change
No change happend
What happens when you mix baking soda
and vinegar together?
Chemical change
Physical change
No change happend
When you crumple a piece of paper and
throw it in the trash, what type of change
occurs?
Chemical change
Physical change
No change happend
