Font size
WorksheetsScience Review (1st 9 WKS)
Total questions: 20
Worksheet time: 33mins
Which of the following statements about the Sun are CORRECT?
[Select only TWO choices]
The Sun is a relatively large star.
The Sun is located 93 million miles away, making it the closest star to Earth.
The Earth orbits the Sun, which is in the center of our solar system, called the Milky Way.
The Sun is located in the center of our solar system.
The Sun is the brightest star in the Milky Way.
Select two of the following facts about Stars that are correct.
All the stars are made up of the same elements as the Sun.
Every star in the night sky is at the same distance from the Earth.
Every star shining in the night sky is larger and emits more light than the Sun.
Stars appear smaller than the Sun because they are all located in our Solar System.
The Sun is just one star among billions in our galaxy and its brightness is apparent due to its proximity to Earth.
Why does the sun seem much brighter to us on Earth than any other star?
The sun is closer to Earth than other stars.
The sun releases more light energy than other stars.
The sun is actually significantly larger than other stars.
The sun's light is not blocked by any other celestial bodies.
Why is a compass useful in navigation?
to view stars clearly at night
to calculate the distance traveled
to indicate Earth's magnetic poles
to track the movements of planets
How is a star chart different from a compass in navigation?
A star chart calculates time; a compass does not calulate time
A star chart magnifies objects; a compass does not magnify objects.
A compass creates a map of the Earth; a star chart does not create a map
A star chart indicates direction of the stars; a compass uses the Earth's magnetic field to point North
What is the primary use of telescopes in the realm of astronomy?
They analyze distant celestial objects.
They help in predicting volcanic eruptions.
They are used to study the Earth's geology.
They are used for broadcasting signals to distant planets.
How do constellations appear to change due to the revolution of Earth around the Sun?
The brightness of constellations increases.
The number of stars in constellations increases.
The position of constellations in the sky changes.
The arrangement of the stars in constellations changes.
Read the sentences below.
Consider a hypothetical planet that has a single moon. The planet's moon completes a lunar phase once every twelve Earth-days.
If this moon were to orbit Earth, how many full moons would the hypothetical moon have had by the time Earth's moon completes three lunar phases?
4
5
6
7
During what phase of the moon is a solar eclipse possible?
new moon
full moon
last quarter
first quarter
Which phase of the moon immediately follows the Full Moon, and starts the cycle of the moon growing smaller in the sky?
new moon
first quarter
waning gibbous
waxing crescent
How does the tilt of the Earth's axis influence the seasons?
It causes seasonal changes in sunlight.
It makes the Earth revolve around the Sun.
It changes the Moon's trajectory around the Earth.
It affects the gravitational force between the Earth and Sun.
What happens when the Sun, the Moon, and the Earth fall in one straight line?
eclipse
seasons
weather
day and night
Identify two factors that primarily influence Earth's seasonal variations.
shift in Earth's magnetic field
the brightness of the Sun's rays
the revolution of Earth around the Sun
angle of sunlight with the Earth's surface
the earth's gravitational pull towards the Moon.
The northern hemisphere and the southern hemisphere experience opposite seasons. What explains this phenomenon?
the difference in the position of the Sun
the difference in the size of the hemispheres
the difference in the position of the hemispheres
the difference in the angle of sunlight that falls on them
Humans recover energy lost from products dumped into landfills. Landfills consist of waste that has both economic and environmental impacts. Many landfill items can be put to additional use because many are simply paper and food waste.
What role can humans play in the recovery of valuable resources found within landfills?
create more energy
increase the amount they recycle
create unhealthy ecological conditions
increase the amount they discard
A group of students are brainstorming ways to lessen the negative environmental impact of their town. Which two options would most effectively decrease air pollution?
hold weekly town parades
encourage residents to compost
create more outdoor playgrounds
use solar energy for heating homes
implement mandatory frequent car washes
What is the effect of recycling on preserving Earth's natural resources?
It reduces landfill waste.
It contributes to global warming.
It depletes non-renewable resources.
It significantly increases landfill waste.
How can the practice of recycling contribute to the conservation of Earth's resources?
It adds to air pollution.
It depletes freshwater resources.
It reduces the need to use new resources.
It increases the need for mining new materials.
What kind of system could potentially minimize the damage caused by wildfires?
having controlled burns
utilizing more solar energy
constructing more skyscrapers
planting more marine vegetation
What safety measure is the safest thing to do during an earthquake?
Run outside as fast as possible.
Move to the top floor of the building.
Use an elevator to come down from the building.
Lie down on the ground and cover your head with your hands.
