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Worksheets2025 STEM review
Total questions: 100
Worksheet time: 1hrs 15mins
How far from the sun is the Earth?
150 billion kilometres
150 million kilometres
108 million kilometres
59 million kilometres
What is the diameter of the Sun?
139 thousand kilometres
139 billion kilometres
139 kilometers
139 million kilometres
How long does light take to get from the sun to earth?
8 minutes and 20 seconds
1 second
instantly
5 minutes and 35 seconds
What shape are the orbits of planets around the sun?
Rectangle
Ellipses
Circular
Square
How far away is the Earth's moon from the surface of Earth?
385,000 kilometres
385 kilometres
385 million kilometres
3850 kilometres
Uranus is what type of planet?
Rocky planet
Gas giant
Ice giant
Dwarf planet
Which scientist came up with the general theory of relativity, the idea that there is a fabric of time and space?
Elon Musk
Nikola Tesla
Isaac Newton
Albert Einstein
In the demonstration of the theory of general relativity, what forces are keeping planets and moons in orbit?
Just gravity
Magnetism and speed
Gravity and speed
Friction, gravity and magic
Which planet is the hottest in our solar system?
Mercury
Jupiter
Venus
Saturn
Reorder the following planets from closest to the sun to furthest (1 is closest, 5 is furthest)
Earth
Mars
Saturn
Uranus
Neptune
Earth is tilted on its axis by how many degrees?
23.4 degrees
16.7 degrees
41.1 degrees
5 degrees
How many planets make up our solar system?
7
8
9
10
Which planet only has one moon?
Jupiter
Saturn
Neptune
Earth
Which planet is the largest?
Jupiter
Saturn
Neptune
Pluto
Which planet is Red in color?
Earth
Mars
Venus
Mercury
This is the only planet with liquid water on it (so far as we know)
Mercury
Earth
Mars
Pluto
Which object used to be the 9th planet, but isn't any more.
Comet
Pluto
Ceres
Sedna
Which planet orbits between Venus and Mars?
Jupiter
Earth
Saturn
Neptune
A reversible change is a change that cannot be undone.
True
False
Rusting is an example of reversible change.
True
False
Which type of change is this? (Egg being cooked)
Reversible
Irreversible
Which type of change is this? (Wood on fire)
Reversible
Irreversible
Ms. Farrar dumps baking soda in vinegar and it creates a lot of bubbles. Is this change reversible or irreversible?
reversible
irreversible
Ms. Baldwin stirs sugar into water. It dissolves. Is this change reversible or irreversible?
reversible
irreversible
What is a reversible change?
a change that can be undone or reversed
a change that CANNOT be undone or reversed
What is an irreversible change?
A change that can be undone or reversed
A change that cannot be undone or reversed
When you cook pancakes, is the change reversible or irreversible?
reversible
irreversible
Which material can dissolve in water?
sand
iron filings
spaghetti
salt
What does this sign mean?
walk in circles
reduce, reuse, recycle
save the environment
green is my favourite colour
What does "reuse" mean?
use less
use more
use again
don't use
What does "reduce" mean?
use more
use less
make new things
save the Earth
How is the carbon cycle similar to the water cycle?
Both involve liquid substances falling to the Earth from the atmosphere?
Neither process works at low temperature.
Both involve the transfer of substances between animals, plants, and the Earth.
Both involve the transfer of substances between the earth and outer space.
Part of the carbon cycle is respiration, where animals take in _____ and release _____.
oxygen, oxygen
Which gas do animals release, that plants depend on for survival?
Carbon dioxide
Oxygen
Sunlight
Water
Which one of these does not add carbon dioxide to the atmosphere?
How do plants affect the air that animals and people breathe?
Plants use oxygen from the air to make their own food
Plants release pollution into the air
Plants take in carbon dioxide and release oxygen
Plants take in oxygen and release carbon dioxide
Plants use ____________ to make their own food
Water
Sunlight
Carbon dioxide
All of these
What is the main goal of a circular economy?
Maximize waste and deplete resources
Promote pollution and environmental degradation
Encourage single-use products and disposable items
Minimize waste and make the most of resources
Name one principle of circular economy.
Maximize profit at all costs
Design out waste
Use as much plastic as possible
In nature, cycles exist to make sure there are no waste materials
true
false
What is the name of the algae machine in the video?
Algae 10
Liquid 3
Solid 5
Gas man
Algae can be farmed to produce (hint: more than two).
Oxygen
Food
Cleaner water
Medicine
Houses
Solar power - Which is the main type of energy used in a solar panel/power station?
Kinetic
Chemical
Gravitational
Nuclear
Solar power - A solar panel makes electricity using a generator.
True
False
Solar power - A solar panel works best when it is
really hot, 40degC.
between 18-22degC.
when it is cloudy.
Solar power- Solar panels use which element to generate electricity?
Silicon
Hydrogen
Oxygen
Uranium
Coal power - A coal powered power station uses thermal energy to ....
make liquid steel.
push water through pipes.
help keep the people who work there cold.
heat water and make steam.
Coal power - A coal powered power plant uses steam to spin a ________ to make electricity.
turbine, then a generator
nuclear reactor
a ferris wheel
windmill
Nuclear power - Which is the main type of energy used in a nuclear power station?
Kinetic
Chemical
Gravitational
Nuclear
Nuclear power - A nuclear power plant uses the energy held within .........
ocean water.
the nucleus of an atom.
electrons.
the air.
Where is the only nuclear reactor in Australia?
Victoria
New South Wales
Northern Territory
Western Australia
Hydro power - Which is the main type of energy used in a hydro power station?
Nuclear
Chemical
Thermal
Gravitational
Hydro power - Hydro power plants are built ............ (choose the best answer)
in the desert.
near dams.
near lakes, rivers and dams.
in the ocean.
Wind power - What type of energy makes wind?
Thermal
Nuclear
Electrical/Magnetic
There is a wind power station near Inverloch and Wonthaggi in Victoria.
False
True
General question - A generator creates electricity by using big ……
wind mills.
furnaces.
chimneys.
magnets.
General question - Electricity generated from powers stations is .. (choose the best answer)
sent to the power grid.
sent to the power grid or stored in batteries.
sent straight to your home.
wasted if not used straight away.
General question - Energy .........
always gets transformed into a different type of energy.
sometimes gets transformed into a different type of energy.
never gets transformed into a different type of energy.
can be made or destroyed when ever we need it.
Electricity is …
human made energy.
a magical thing humans will never understand.
the movement of electrons or protons.
General question - When you are up high, then go down a ramp and move super fast, the transformation of energy is ..... (think of a roller coaster)
thermal to nuclear.
kinetic to chemical.
gravitational to kinetic.
electrical to gravitational.
When light bounces off an object in a different direction
absorbtion
refraction
reflection
When light hits a translucent object and bends
absorbtion
refraction
reflection
How is white light able to separate through a prism?
the light is being absorbed
the light is being refracted
the light is being reflected
We are able to see a mirrored image of the mountains on the water through...
refraction
reflection
What color is being reflected?
green
blue and yellow
red, orange, yellow, blue, indigo, violet
What colors are being absorbed?
red, orange, yellow
green, blue, indigo, violet
The bending of light when it passes though a medium, such as water or a prism
Reflection
Refraction
Absorbtion
Medium
Look at the image and pick the light behavior that best matches it.
Reflection
Refraction
Absorbtion
Dispersion
What is the best description of an opaque material?
no light passes through the material
some light passes through the material
all light passes through the material
What is the best description of a transparent material?
no light passes through the material
some light passes through the material
all light passes through the material
When a light ray strikes a smooth, flat surface, what is the relationship between the angle of incidence and the angle of reflection?
They are equal.
The angle of incidence is twice that of the angle of reflection.
The angle of reflection is twice that of the angle of incidence.
They combine to add up to 180o.
Objects that generate their own light are called:
luminous objects.
illuminated objects.
non-luminous objects.
reflective objects.
Which will make the darkest shadow?
Sheet of thin tissue paper.
glass window
wooden chopping board
plastic bottle
What can you use to see all the different colors in white light?
A flashlight
A shadow
A camera
A prism
A leaf is green. What does this tell you about the light that is being absorbed?
The light is a UV ray.
The light is not a part of the light spectrum.
All colors are reflected except green.
All colors are absorbed except green
What happens when light hits a shiny or smooth surface?
It disappears.
It is refracted.
It is absorbed.
It is reflected.
When you look into a mirror, what is happening to the light?
It is increasing in wavelengths.
It is being refracted.
It is being absorbed.
It is being reflected.
Light is a form of energy that creates...
water
heat
shade
matter
Light travels in a _________ line.
wavy
curved
straight
low
Light absorbs easily into dark surfaces. Which object would absorb the most light?
black t-shirt
paper
window
tree
Both plants and animals will benefit from adaptations to improve their chances to survive.
True
False
What adaptation helps penguins and seals stay warm?
long eyelashes
long necks
a thick layer of fat
long fur
Why do giraffes have long necks and rough tounges?
To look like trees
to reach leaves on trees
to hide in trees
to swing from trees
Which part of a camel’s body helps protect against sandstorms?
hump
eyelashes
feet
Why do some organisms, like butterflies, have bright colors?
to warn predators they are poisonous
to make it easier to find food
to help them fly long distances
to blend in with their surroundings
What is natural selection?
passing of hiding traits to future generations
passing of survival traits to future generations
passing of hunting traits to future generations
Why do camels have humps?
to store water.
to store fat.
to carry things on.
How do a camel’s feet help it walk on the sand?
They are wide and flat to stop it slipping.
They are small and can move quickly.
They have claws on their feet.
What is an adaptation?
a special feature that helps animals survive
the animal's environment
the way an animal hunts
predators eat prey
Armor is an adaptation that helps animals...
hunt
protect themselves from predators
run quickly
blend in with their surroundings
Having webbed feet is an adaptation. How do webbed feet help animals survive?
They stay cool in the summer.
They can swim faster.
They can blend in with their surroundings.
They can attack their prey.
Sharp teeth are an adaptation. How do sharp teeth help animals survive?
Animals can use them to attack their prey.
Animals can run away from danger.
Animals can avoid the cold weather.
Animals can fly away.
Polar bear get protection from severe cold from their
small eyes
thick fur
sharp claws
strong limbs
The thick layer of fat which protect animals form cold is called......
Fatty
Blubber
Fur
Feather
What is a habitat?
all of one kind of animal or plant in the same area
all the animals living in the ocean
living and nonliving things that interact in the same space
the space where a plant or animal lives
What was your favourite activity or project you did in STEM this year? (honest responses, there are no right or wrong answers)
