Download Year 8 Science Home Learning Booklet

Student Name:
Year 8 Science Home Learning Booklet
Space
To be handed in before 5th November
Question
Number
Total Marks
1
2
3
4
5
6
3
3
7
4
Total
23
Approximate grade boundaries
My Mark
Q1. (a) Sita made a model of three parts of the solar system, the Sun, Earth and Moon.
She used a marble, a torch and a tennis ball.
Draw a line from each part of the solar system to the object she used.
Draw only three lines.
2 marks
(b) The table below shows the order of some of the planets in our solar system.
Complete the table to show the positions of the Earth, Neptune and the Sun.
Mercury
Venus
Mars
Jupiter
Saturn
Uranus
2 marks
(c) The diagram shows a satellite in orbit around the Earth.
not to scale
(i) Give one use of a satellite.
...................................................................................................................
...................................................................................................................
(ii) Which force keeps the satellite in orbit around the Earth?
Tick the correct box.
gravity
air resistance
friction
magnetism
2 marks
maximum 6 marks
Q2. Some children watched an eclipse of the Sun.
During the eclipse, the Moon passed between the Sun and the Earth.
It blocked out sunlight.
(a) Amrik watched the eclipse. He knew that the Sun is much bigger than the Moon but they
looked about the same size.
Why did they look the same size? Tick the correct box.
The Moon is nearer to the Earth than
the Sun is.
The Sun is nearer to the Earth than
the Moon is.
The Sun goes round the Earth faster
than the Moon does.
The Moon goes round the Sun faster
than the Earth does.
1 mark
(b) Amrik's class measured the light level during the eclipse.
The graph below shows their results.
(i) At what time did the Moon block out most of the Sun's light?
Use the graph to help you.
.................................... am
1 mark
(ii) What happened to the air temperature during the eclipse?
..............................................................................................................
Give the reason for your answer.
..............................................................................................................
..............................................................................................................
1 mark
Maximum 3 marks
Q3. Mars is the fourth planet from the Sun.
not to scale
(a) Name one planet which is closer than Mars to the Sun.
.....................................................................
1 mark
(b) A day and night on Mars lasts nearly 25 Earth hours. Explain why there is daytime and
night-time on Mars.
......................................................................................................................
......................................................................................................................
1 mark
(c) Like Earth, Mars has summers and winters.
Suggest why there are seasons on Mars.
......................................................................................................................
......................................................................................................................
1 mark
Maximum 3 marks
Q4. The diagram shows the orbits of the Earth, Venus and Jupiter around the Sun.
They are not to scale.
(a) Where is the orbit of Mars?
Tick the correct box.
It is between the Sun and the orbit of Venus.
It is between the orbit of Venus and the orbit of Earth.
It is between the orbit of Earth and the orbit of Jupiter.
It is outside the orbit of Jupiter.
1 mark
Venus and Jupiter can be seen from the Earth.
(b) Sometimes Venus appears to be larger than at other times.
(i) On the diagram, draw the position of Venus where it appears to be largest.
Label it V.
1 mark
(ii) Why does the size of Venus appear to change?
.............................................................................................................
.............................................................................................................
1 mark
(c) Even on clear nights, Jupiter sometimes appears to be slightly brighter than at other times.
(i) On the diagram, draw the position of Jupiter where it appears to be brightest.
Label it J.
1 mark
(ii) Why does the brightness of Jupiter appear to change?
.............................................................................................................
.............................................................................................................
1 mark
(d) Give two reasons why less light is reflected from Jupiter to the Earth than from Venus to the
Earth.
1. ..................................................................................................................
2. ..................................................................................................................
2 marks
Maximum 7 marks
##
Regulus is a bright star in the constellation Leo. In February, an astronomer visited a country close
to the equator. While she was there she observed Regulus.
(a) During the night, Regulus appeared to move across the sky.
(i) Why do stars appear to move across the sky?
..........................................................................................................
1 mark
(ii) Choose from the words below to complete the sentence.
north east south west
Regulus appeared to move across the sky from
................................................ to ....................................................
1 mark
(b) The diagram below shows the position of the Earth and the Sun when the astronomer made
her observations. She noticed that Regulus was directly overhead at midnight. On the
diagram, draw an arrow from the Earth to show the direction in which she looked to see
Regulus.
1 mark
(c) Six months later, in August, Regulus cannot be seen at any time.
Explain why.
....................................................................................................................
....................................................................................................................
1 mark
Maximum 4 marks