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HIA International — Grade 6

Unit 1: Cells and organisms

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Unit 2: States of matter, atoms and compounds

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Unit 3: The Solar System and energy

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Unit 4: Living organisms and classification

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Unit 5: Metals, non-metals, acids and alkalis

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Unit 6: Sound, the Earth and eclipses

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Unit 7: Microorganisms and food webs

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Unit 8: Chemical reactions

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Unit 9: Electricity and circuits

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Quiz

Checkpoint Grade 6 Unit 3 – 3.2 Formation Of The Solar System

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Formation Of The Solar System Checkpoint Earth and Space quiz: free practice for Cambridge Checkpoint Earth And Space 0893. Work through this Formation Of The Solar System Checkpoint Earth and Space quiz and get instant feedback on every answer. If you get stuck, review the 1.2 Formation of the Solar System lesson. More practice: Cambridge Checkpoint Earth And Space 0893 — all units. Syllabus: Cambridge Lower Secondary programme.

  • Questions count: 49
  • Passing grade: B+
  • Time limit:
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1.
Which statement best expresses the lesson objective about Formation of the Solar System?
Recall that clouds of dust and gas exist in space
The terms axis and contradict are always interchangeable
Evidence is unnecessary when studying Formation of the Solar System
Every model is an exact copy of reality
2.
Which practical work belongs to Formation Of The Solar System?
Measure or calculate weight using W = m × g and use correct units
Use force diagrams and compare motion in air with motion in a vacuum
Interpret tidal-range information and relate it to the positions of the Earth, Moon and Sun
Evaluate a model of Solar System formation and distinguish evidence from speculation
3.
Which statement correctly describes accretion?
the pulling together of a cloud of gas and dust by its own gravity
the sticking together of dust and rock to build up larger bodies
the hot dense centre of a collapsing cloud, before nuclear reactions begin
one of the four small dense inner planets
4.
Which statement correctly describes evidence?
one of the four small dense inner planets
the pulling together of a cloud of gas and dust by its own gravity
the huge cloud of gas and dust from which the Solar System formed
the observations that support a scientific explanation of how the Solar System formed
5.
Which statement correctly describes gravitational collapse?
one of the four small dense inner planets
the pulling together of a cloud of gas and dust by its own gravity
one of the four large outer planets made mostly of gas
the hot dense centre of a collapsing cloud, before nuclear reactions begin
6.
The four pictures P, Q, R and S show stages in the formation of the Solar System, but they are mixed up. Which order is correct, from earliest to latest?
Dr Dabour Hub Academy - figure 1
S, then Q, then R, then P
Q, then P, then S, then R
Q, then S, then P, then R
R, then P, then S, then Q
7.
Oskar plotted the density of each planet in a bar chart. Which statement best explains the pattern shown?
Dr Dabour Hub Academy - figure 2
The inner four formed where ices could not stay solid, so they are rock and metal
Planets closer to the Sun are squeezed harder by the Sun, which makes them denser
The bigger a planet is, the denser it is, so the giants have the highest density
The outer planets lost their rock and metal to the inner planets as they formed
8.
The diagram shows the disc around the young Sun, with the frost line marked. Planetesimals are forming at points X and Y. What kind of planet is most likely to grow at Y?
Dr Dabour Hub Academy - figure 3
A small, dense planet made of rock and metal
A second star, because Y is far from the Sun
No planet at all, because it is too cold for accretion
A giant planet made mostly of gas and ice
9.
The diagram shows the Sun and the eight planets numbered 1 to 8 in order, with a band of small bodies labelled X. Which option correctly identifies planet 5 and band X?
Dr Dabour Hub Academy - figure 4
Planet 5 is Saturn; X is a band of comets made of ice
Planet 5 is Jupiter; X is the asteroid belt of leftover rock
Planet 5 is Mars; X is the asteroid belt of leftover rock
Planet 5 is Jupiter; X is a ring of hot gas from the Sun
10.
Farah used a computer model to predict the temperature in the disc around the young Sun. Her graph is shown. Using the graph, about how far from the young Sun was the frost line?
Dr Dabour Hub Academy - figure 5
About 150 million km
About 50 million km
About 450 million km
About 900 million km
11.
The bar chart shows what the nebula that formed the Solar System was made of. Which conclusion does it best support?
Dr Dabour Hub Academy - figure 6
The nebula was mainly rock dust, so most planets are rocky
Very little of the nebula could form solid rock, so rocky planets are small
Helium made up most of the nebula, so the Sun is mostly helium
The nebula had no solid material, so no rocky planets could form
12.
Mr Okafor uses the model shown to demonstrate how the nebula collapsed. The marbles roll down the dip towards the heavy ball. Which is a real limitation of this model?
Dr Dabour Hub Academy - figure 7
It shows material being pulled towards the most massive object
Marbles are too shiny and smooth to stand for particles of dust
The heavy ball has mass, but the centre of a real nebula had none
The sheet does not spin, so the marbles fall straight in and no disc forms
13.
Kenji ran a computer simulation of clumps of material in the early disc. He recorded how many dust particles each clump pulled in per year. What conclusion do his results support?
Dr Dabour Hub Academy - figure 8
Clumps with more mass have stronger gravity and gather material faster
The mass of a clump has no effect on how much material it gathers
Smaller clumps pull in more dust because they move more quickly
Clumps gather dust by magnetism, which is stronger in heavy clumps
14.
The table gives data about four planets, W, X, Y and Z. Which two planets formed beyond the frost line?
Planets X and Z
Planets W and Y
Planets W and X
Planets Y and Z
15.
Priya's class listed four statements about the Solar System. Which statement is speculation rather than evidence?
Statement 1
Statement 2
Statement 4
Statement 3
16.
Tariq wrote the steps of the formation of the Solar System in the table. One step is in the wrong place. How should he correct his list?
Move step 1 after step 2, as gravity came first
Move step 5 to the start, as the Sun formed first
Move step 3 to the end, after the Sun forms
Remove step 4, because the cloud never spun
17.
Sofia placed a ball of soft dough on a turntable and spun it for 30 seconds at different speeds, as a model of the nebula. Her results are in the table. Which conclusion is supported?
Faster spinning makes the dough taller and narrower, like a tower
Faster spinning makes the dough flatter and wider, like a disc
The speed of spinning has no effect on the shape of the dough
Spinning makes the dough lose mass, so the nebula lost its gas
18.
The table shows how each planet orbits the Sun. The tilt is the angle between the planet's orbit and Earth's orbit. Which conclusion do the data best support?
The planets formed together from one flat, spinning disc
Each planet formed from a separate cloud at a different time
Mercury formed around a different star and was captured later
The bigger the planet, the larger the tilt of its orbit
19.
The table describes four objects in the Solar System. Which object is a comet?
Object A, made of rock and metal
Object B, made of ice and dust
Object C, made mostly of gas
Object D, made of rock
20.
Lucas sorted some objects in space into groups. One row of his table is wrong. Which row is wrong, and what is the correction?
The Sun – it should be classed as a star
Pluto – it should be classed as the ninth planet
The Moon – it should be classed as a planet
Halley's Comet – it should be an asteroid
21.
To model accretion, Amara rolled a ball of sticky tape (sticky side out) across a tray of tiny polystyrene beads four times. Her results are in the table. What is the biggest weakness of this model?
The ball got bigger each roll, but real clumps never grew
The results show a pattern, so the model has no weakness
The beads are held on by glue, not by the pull of gravity
The beads are lighter than tape, so they cannot be dust
22.
Why did the centre of the collapsing nebula become very hot and dense?
Burning hydrogen at the edges heated the centre
Magnetism pulled the metal dust into the centre
Gravity pulled most of the material into the centre
The planets pressed inwards on the centre
23.
Jupiter and Saturn still have very thick atmospheres of hydrogen and helium. Why have they kept these light gases?
They are so hot that the gases cannot escape
Their huge mass gives strong gravity that holds the gases
They are close to the Sun, which pushes gas onto them
Their rings form a lid that traps the gases inside
24.
Scientists use models to test ideas about how the Solar System formed. Why can they not simply watch it happen?
The Sun is too bright to look at safely
Planets are too small to see with telescopes
Nebulae only exist in science fiction
It happened about 4.6 billion years ago
25.
Each option pairs a key term with a meaning. Which pairing is correct?
Nuclear fusion – joining of hydrogen nuclei, releasing energy
Accretion – the Sun releasing energy as light
Nebula – a small rocky body that forms planets
Protostar – dust and ice left over after planets form
26.
Each option pairs a planet with its group. Which pairing is correct?
Uranus – inner, rocky planet
Venus – outer, gas giant
Saturn – dwarf planet
Mars – inner, rocky planet
27.
Each option pairs an observation with the idea it supports. Which pairing is correct?
The asteroid belt exists – the Sun formed last
Planets orbit in one direction – they formed from a spinning disc
Inner planets are rocky – the nebula was mostly rock
Giant planets have rings – they formed near the Sun
28.
Each option pairs a feature of the outer planets with its reason. Which pairing is correct?
Low density – made of rock and metal
Very thick atmosphere – weak gravity
Giant size – more material beyond the frost line
Formed of gas and ice – too hot for ices there
29.
The Solar System is about _____ billion years old.
46
1.6
4.6
13.8
30.
The cloud of gas and dust the Solar System formed from is a _____.
comet
crater
galaxy
nebula
31.
Small rocky or icy bodies called _____ collided and joined together to build the planets.
protostars
nebulae in space
planetesimals
dwarf stars
32.
The distance from the young Sun beyond which it was cold enough for ices to form is called the _____.
frost line
asteroid belt
orbit plane
nebula edge
33.
An early star forming at the centre of a collapsing cloud of gas and dust is called a _____.
planetesimal
comet nucleus
dwarf planet
protostar
34.
A space probe finds a small body that is made mostly of ice. It most likely formed _____.
inside the Sun itself
beyond the frost line
very near Mercury
close to the young Sun
35.
The planets orbit at completely random angles to each other. - True or false?
True
False
36.
Dust and rock stuck together over time to build the planets. - True or false?
True
False
37.
The four outer planets are large gas giants. - True or false?
True
False
38.
The Sun gives out energy because hydrogen in it is burning like a giant fire. True or false?
True – the statement is correct
False – energy comes from nuclear fusion
True, but only at the surface
True, but only since the planets formed
39.
The Sun is the largest planet in the Solar System. True or false?
True – the statement is correct
True, and Jupiter is the second largest
False – the Sun is a star
True, because everything orbits it
40.
Pluto is the ninth planet of the Solar System. True or false?
True – the statement is correct
True, and it is a gas giant
True, and it is the largest planet
False – Pluto is a dwarf planet
41.
Magnetism was the force that pulled the dust and gas of the nebula together. True or false?
False – gravity pulled them together
True – the statement is correct
True, but only for the metal dust
True, but only near the centre
42.
Photographs of flat discs of dust around young stars are evidence that supports the idea that the Solar System formed from a spinning disc. True or false?
False – the statement is wrong
False – photos are only speculation
False – they prove the theory completely
True – the statement is correct
43.
Kwame says: "A huge comet probably crashed into Venus while it was forming." This statement is evidence about the Solar System's formation. True or false?
True – the statement is correct
False – it is speculation, not observed
True, because it is about the past
True, because Kwame is sure of it
44.
If two planetesimals are the same distance from a piece of dust, the one with more mass pulls the dust more strongly. True or false?
True – the statement is correct
False – the statement is wrong
False – the smaller one pulls harder
False – mass does not affect gravity
45.
The planets formed first, and the Sun formed later from the material the planets did not use. True or false?
True – the statement is correct
True, and the asteroids formed last of all
False – the Sun formed first at the centre
True, because planets are smaller
46.
Comets are made of ice and dust left over from when the Solar System formed. True or false?
False – the statement is wrong
True – the statement is correct
False – comets are pieces of the Sun
False – comets are made of metal
47.
A giant planet like Jupiter could not have formed as close to the Sun as Mercury, because there it was too hot for ices to stay solid. True or false?
False – the statement is wrong
False – it was colder near the Sun
True – the statement is correct
False – giant planets form close in
48.
Mars has only a thin atmosphere because it formed further from the Sun than Earth. True or false?
True – the statement is correct
True, as distance removes gases
True, as Mars formed beyond the frost line
False – it is small, so its gravity is weak
49.
As the nebula collapsed, it began to spin and flattened into a disc. True or false?
True – the statement is correct
False – the statement is wrong
False – it became a perfect ball
False – it stretched into a line
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Part of Unit 3: The Solar System and energy — see every lesson and quiz in this unit.
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