A
1.Which scientist proposed the heliocentric model of the solar system?
A. Galileo Galilei
B. Nicolaus Copernicus
C. Ptolemy
D. Johannes Kepler
B. Nicolaus Copernicus
1. Name the outermost layer of the sun
Corona
What are the two main gases that make up the Sun?
A) Oxygen and carbon
B) Hydrogen and helium
C) Nitrogen and oxygen
D) Carbon dioxide and methane
B
1. According to the geocentric model, which planet is stationary?
Earth
1.Which of the following is a phenomenon that occurs on the surface of the Sun?
A) Nebula
B) Sunspot
C) Moon crater
D) Comet tail
B) Sunspot
2. What does “geocentric” mean?
A. Earth at the centre
B. Sun at the centre
C. Moon at the centre
D. Galaxy at the centre
A. Earth at the centre
2. Who proposed the geocentric model of the solar system?
Ptolemy
2.Why do sunspots appear darker than the surrounding areas on the Sun’s surface?
A) They are made of dust
B) They contain no gases
C) Their temperature is lower than the surrounding areas
D) They reflect less sunlight
C
2.Who proposed the idea for Kepler's law?
Kepler
2. What protects Earth from harmful charged particles coming from the Sun?
A) Atmosphere
B) Moon
C) Magnetosphere
D) Ozone layer
C) Magnetosphere
3. The magnetosphere is a region that protects Earth from the damaging effects of:
a) Earthquakes
b) Solar flares
c) Meteor showers
d) Volcanic eruptions
b) Solar flares
3. Compare the geocentric and heliocentric models of the solar system in terms of their main idea and the astronomers who supported them.
Heliocentric model:
Main idea: Sun is at the centre of the solar system, and planets (including Earth) revolve around the Sun.
Supported by: Copernicus
-Geocentric model
Main idea: Earth is at the centre of the universe, and all planets & the Sun revolve around Earth.
Supported by: Ptolemy.
3. Which layer of the Sun can only be seen during a total solar eclipse as a glowing outer layer?
A) Photosphere
B) Chromosphere
C) Core
D) Corona
D
3.How long does it take to complete one solar cycle?
11 years
3. Which layer of the Sun can be seen as a glowing red region during a total solar eclipse?
A) Photosphere
B) Corona
C) Chromosphere
D) Core
C) Chromosphere
4. Ali watches a video of colourful auroras at the North Pole. He asks why Malaysia cannot see this phenomenon.
A. Auroras only occur where volcanoes are active
B. Malaysia is shielded by the ozone layer
C. Earth’s magnetic field channels charged particles towards the poles
D. The Sun does not shine strongly at the equator
C. Earth’s magnetic field channels charged particles towards the poles
4. State one contribution of Galileo Galilei in the field of astronomy.
He improved the telescope and discovered Jupiter’s four largest moons
4. Which planet is the second closest to the Sun?
A) Venus
B) Earth
C) Mars
D) Mercury
A
4. State the layers of sun in the correct order ( outer to inner )
Corona>chromosphere>photosphere>convection zone>radiation zone>core
4. When solar flares erupt and send charged particles toward Earth, what phenomenon can they create in the polar skies?
A) Hurricanes
B) Volcano eruptions
C) Aurora
D) Tsunami
c) Aurora
5.Farah reads a news article that solar activity can affect satellites. Which effect is most likely to happen?
A. Satellites will fall to Earth immediately
B. Satellites may lose communication signals
C. Satellites will stop orbiting permanently
D. Satellites will explode due to heat
B. Satellites may lose communication signals
5.Imagine Earth without the Sun’s energy for one month. Predict and explain the consequences for living things and Earth’s climate.
REFER TO HOST
5. Which is the largest planet in the Solar System?
A) Earth
B) Jupiter
C) Saturn
D) Neptune
B
5. What is the importance of Magnestosphere?
>Protect living things from the effects of charged particles from solar wind ( or answers alike )
>Reduce pressure exerted by solar wind ( or answers alike )
Why can aurora only be seen at the North and South poles, and not everywhere on Earth?
Aurora only happens near the North and South poles because the charged particles from the Sun are guided by Earth’s magnetic field to those areas. That is why we see aurora near the poles but not at the equator.