WorksheetsStates of Matter and Rocks Quiz
Total questions: 45
Worksheet time: 23mins
What happens to the space between particles when a solid melts into a liquid?
It increases slightly
It disappears
It becomes zero
It turns into gas
Which of the following changes does NOT involve a change in the state of matter?
Ice melting into water
Water boiling into steam
Breaking a chocolate bar
Water freezing into ice
Why does water vapor become visible when it touches a cold surface?
It turns into air
It disappears
It condenses into tiny water droplets
It freezes instantly
Which of these is an example of deposition (gas turning directly into solid)?
Fog(water droplets suspended in air) forming
Frost(ice) on windows
Dew drops on grass
Water boiling
What causes a solid to change into a liquid?
Losing heat
Gaining heat
Mixing with air
Squeezing hard
Which state of matter has the most energy in its particles?
Solid
Liquid
Gas
Ice
Why does ice feel cold when you touch it?
It gives out coldness
It absorbs heat from your hand
It melts instantly
It has sharp edges
Which of the following is a reversible change of state?
Burning wood
Melting chocolate
Cooking an egg
Baking a cake
What is the state of matter of clouds?
Solid
Gas
Liquid
A mix of tiny liquid droplets and gas
Which change needs cooling to happen?
Evaporation
Condensation
Boiling
Melting
Which of these actions uses evaporation?
Freezing juice to make popsicles
Drying clothes in the sun
Making ice cubes
Melting butter
A balloon bursts in the sun. What state of matter caused this?
Gas inside expanded due to heat
Solid melted
Liquid turned solid
Plastic became heavy
What happens to water when it is kept in a freezer?
It evaporates
It stays the same
It becomes ice
It turns into steam
Why is steam more dangerous than boiling water?
It is invisible
It contains more energy
It disappears faster
It is lighter
When we heat a solid, its particles:
Stop moving
Start sticking more
Vibrate faster and move apart
Disappear
Which of the following is an element?
Water
Air
Gold
Sugar
A molecule of water is made of:
Two hydrogen atoms and two oxygen atoms
One hydrogen atom and one oxygen atom
Two hydrogen atoms and one oxygen atom
Two oxygen atoms and one hydrogen atom
What is an atom?
A type of gas
A small rock
The smallest part of an element
A tiny drop of water
Which of these is a compound?
Iron
Oxygen
Carbon dioxide
Copper
What do we call a group of atoms joined together?
Molecule
Mixture
Atom group
Particle
Which one is a mixture and not a compound?
Salt
Air
Water
Carbon dioxide
All matter is made up of:
Rocks
Atoms
Gases
Dust
Which one is not made of molecules?
Water
Oxygen
Wood
Light
How are atoms and molecules different?
Atoms are smaller than molecules
Atoms are made of molecules
They are always the same thing
Molecules are inside atoms
Which of the following is a symbol that refers to an element?
H₂O
CO₂
Na
Sugar
Which of the following pairs represent only elements?
Oxygen and Water
Hydrogen and Carbon
Salt and Nitrogen
Sugar and Iron
Which statement is true about compounds?
They are made of only one type of atom
Their parts can be separated easily
They are formed when atoms combine chemically
They are always liquids
Which is the correct match?
H₂O – Element
CO₂ – Compound
O₂ – Compound
C – Compound
What do molecules of an element contain?
Different types of atoms
One type of atom only
No atoms at all
A mixture of solids
Which of the following is a correct example of a molecule made from different atoms?
O₂
H
N₂
HCl
Which layer of the Earth is made mostly of molten rock and causes volcanic activity?
Crust
Mantle
Inner core
Lithosphere
What is the main difference between magma and lava?
Lava is colder than magma
Magma is solid, lava is gas
Magma is found inside the Earth, lava is on the surface
Lava is inside volcanoes, magma is underwater
Which layer of the Earth is the thinnest?
Core
Mantle
Crust
Outer Core
What type of rock forms when lava cools quickly above the surface?
Sedimentary
Metamorphic
Intrusive Igneous
Extrusive Igneous
Which type of rock forms from magma cooling slowly inside the Earth?
Basalt
Obsidian
Granite
Limestone
Which of the following is NOT an igneous rock?
Basalt
Obsidian
Marble
Granite
What are the three main types of rocks?
Molten, solid, liquid
Igneous, sedimentary, metamorphic
Soft, hard, liquid
Crust, mantle, core
How are sedimentary rocks mainly formed?
From melted magma
From heat and pressure
From layers of sand, shells, and mud compacted over time
From volcanic eruptions
Which of these is a sedimentary rock?
Obsidian
Sandstone
Marble
Granite
What causes metamorphic rocks to form?
Melting and cooling
Evaporation
Heat and pressure
Freezing
Which of the following is a metamorphic rock?
Basalt
Limestone
Marble
Pumice
Why don’t igneous rocks usually contain fossils?
They are too soft
They are formed from cooled magma, which would destroy fossils
They form under the ocean
They are made of gas
Which of these is an example of extrusive igneous rock that has holes in it due to gas bubbles?
Obsidian
Granite
Pumice
Marble
How can you usually identify a sedimentary rock?
It is shiny
It has layers or fossils
It has crystals
It floats on water
Which rock type can change into another type through the rock cycle?
Only igneous
Only sedimentary
Only metamorphic
All three types
