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The Planets 1

In this worksheet, students will answer questions about the nature of planets in our solar system

'The Planets 1' worksheet

Key stage:  KS 2

Curriculum topic:   Earth and Space

Curriculum subtopic:   Movement of Earth and the Planets

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

Finding out about our solar system is brilliant, isn't it?  Here it is:

 

Solar System

(This image is not to scale).

 

 

MERCURY
VENUS
EARTH
MARS
JUPITER
SATURN
URANUS
NEPTUNE
(PLUTO)

 

There are eight planets in our solar system, including our own amazing planet, Earth. We can see all the planets from Earth and recognise them because they have different colours, sizes and positions in the night sky. 

 

Poor Pluto is no longer classified as a planet because it is too small!

 

So, let's get out there and find out about our neighbouring planets...

Venus, Mercury and Mars are... 

stars

suns

satellites

planets

Which best describes the shape of planets?

irregular like a cotton wool ball

a cylinder, like a can of beans

a circle, like a DVD

a sphere, like a marble

Scientists love to find evidence to help them discover what's going on.

 

What is the EVIDENCE for the existence of the planets (before we sent machines into space)?

bits of them fall to Earth

humans have visited them

we can see them from Earth

We can see the planets in the night sky using which piece of equipment?

microscope

telescope

horoscope

We need to know where to look for planets in the night sky because they...

send out light

they move in their orbit

they rotate

Choose THREE materials which we think the planets COULD be made of.

rock

plastic

gas

cheese

metals

Viewed through a telescope, all the planets look the same colour. Is this true or false?

true

false

We can see the colour of the different planets because they...

are a source of light

reflect the sun's light

they flash different colours according to how fast they rotate

Mars is known as the ____ coloured planet.

red

green

purple

Earth is called the ____ planet.

blue

green

brown

  • Question 1

Venus, Mercury and Mars are... 

CORRECT ANSWER
planets
EDDIE SAYS
OK, so an easy-peasy one to start off with! Satellites are orbiting bodies - we call our orbiting body the MOON. Mind you, there are satellites that 'we' put into space (like satellite TV, GPS and so on) and they orbit the Earth too.
  • Question 2

Which best describes the shape of planets?

CORRECT ANSWER
a sphere, like a marble
EDDIE SAYS
Hmmm, circle or sphere? Planets in space are shaped like footballs or marbles - they are spheres. Stars and moons are also spheres.
  • Question 3

Scientists love to find evidence to help them discover what's going on.

 

What is the EVIDENCE for the existence of the planets (before we sent machines into space)?

CORRECT ANSWER
we can see them from Earth
EDDIE SAYS
All the planets can be seen from Earth - if we know where to look in the sky. That's how they were first discovered - using telescopes. Only later, when we were able to send telescopes into space, did we find loads more! However, even the nearest planet is too far away AT THE MOMENT for humans to visit. Ah well, better go to Scarborough again next year...
  • Question 4

We can see the planets in the night sky using which piece of equipment?

CORRECT ANSWER
telescope
EDDIE SAYS
Telescopes help us to focus on the planets and other bodies in the night sky: first they were used on the planet's surface, now they can be orbiting the Earth (like the Hubble Space Telescope) sending back amazing images from a long, long way away. Microscopes are for looking at tiny things (like blood cells) and the horoscope is meant to tell you your future (oh really?)!
  • Question 5

We need to know where to look for planets in the night sky because they...

CORRECT ANSWER
they move in their orbit
EDDIE SAYS
All the planets orbit the sun at different distances from our star. This means that they move across the night sky. That way we can plot and predict what their orbits are and so find out about them, our planet and our sun. By the way they don't send out light (like stars) - they reflect light from the sun.
  • Question 6

Choose THREE materials which we think the planets COULD be made of.

CORRECT ANSWER
rock
gas
metals
EDDIE SAYS
Some planets, including Earth, have a core of rock and metal and are solid on the surface. Others are largely made of gas around a much smaller core, and are gas on the surface. As for cheese, isn't that what the moon's made of? Wallace and Gromit throught so!
  • Question 7

Viewed through a telescope, all the planets look the same colour. Is this true or false?

CORRECT ANSWER
false
EDDIE SAYS
In fact, they do look different. Planets can be identified by their different colours: Mars is known as the red planet (all that iron ore) whilst Earth is the blue planet (due to our oceans). See if you can find out about some of the others, like Neptune.
  • Question 8

We can see the colour of the different planets because they...

CORRECT ANSWER
reflect the sun's light
EDDIE SAYS
We only see the planets because they reflect the sun's light - just like our moon! Only stars can PRODUCE light - everything else reflects that light.
  • Question 9

Mars is known as the ____ coloured planet.

CORRECT ANSWER
red
EDDIE SAYS
So, Mars is the red planet. Much of its surface is iron ore dust - just like rust it's an orangey-red colour, so Mars looks red.
  • Question 10

Earth is called the ____ planet.

CORRECT ANSWER
blue
EDDIE SAYS
Seen from space, our planet looks blue because of the oceans. Isn't that beautiful? Oh, and don't forget Sir David Attenborough's amazing series about life in the oceans: Blue Planet I and II.
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