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WorksheetsHow Big is Big? how Far is Far? PT2
Total questions: 40
Worksheet time: 3hrs 57mins
What is the purpose of using models in space science?
To make objects appear larger
To compare distances and sizes
To change the color of stars
To increase the speed of light
If Earth were the size of a marble, how far would the Moon be in this model?
One foot away
One mile away
One inch away
One hundred feet away
What is a light-year?
The distance light travels in one year
The time it takes for the Earth to orbit the Sun
The distance between the Earth and the Moon
The time it takes for light to reach the Moon
Why do scientists use light-years instead of miles or kilometers?
To make distances seem shorter
To better describe the huge scale of the universe
To measure the speed of light
To calculate the age of stars
What would Mars be if Earth were a marble in the solar system model?
A basketball
A marble
A pea
A beach ball
Why do scientists create models of space objects?
To replace actual distances with smaller numbers that are easier to memorize
To provide a physical way to compare sizes and distances that are otherwise hard to imagine
To avoid using more precise units like miles or kilometers
To make planets and stars look more realistic than they do in space
In the model, Earth is a marble, the Moon is a pea, and the Sun is a beach ball. What does this comparison mainly show?
The Sun’s size is much greater than Earth and the Moon, but the distance also makes it seem smaller in the sky
The Sun is made of different material than Earth or the Moon, so it appears brighter
Earth and the Moon orbit the Sun together, so they must be placed close to each other in the model
The Moon is closer to Earth than the Sun is, which makes eclipses possible
The passage explains the idea of scale. Which example BEST shows scale being used correctly?
Saying the Moon weighs less than the Earth
Drawing Earth larger than the Sun to make it easier to see details
Shrinking both Earth and the Sun to smaller objects but keeping their distances proportional
Measuring the Sun’s diameter directly in miles instead of light-years
Why is the space between Earth and Mars described as mostly “empty”?
Because Mars is made of lighter material than Earth
Because even though the planets are large, the distance separating them is much greater than their sizes
Because telescopes cannot detect any objects between the planets
Because stars are located far beyond the orbit of Mars
Which detail from the passage BEST emphasizes how far away other stars are?
The Moon, in the model, is only one foot from Earth
Proxima Centauri, in the model, would be placed thousands of miles away
The Sun, in the model, is about the size of a beach ball
Mars, in the model, is also a marble but much farther away from Earth
If a scientist wanted to help students imagine the distance to another galaxy, which strategy would be MOST similar to the models in the passage?
Showing students a picture of the Milky Way taken by a telescope
Using marbles and beach balls to shrink galaxies to a smaller but proportional scale
Explaining how long it would take to drive a spaceship to the galaxy using miles
Measuring the stars in the galaxy with a ruler to compare their sizes
What is the MAIN function of comparisons in this passage?
To show that planets and stars are made of the same materials as objects on Earth
To make distances and sizes more understandable by connecting them to everyday objects
To prove that models are more accurate than direct measurements
To explain how scientists discovered the true distances between Earth, the Moon, and the Sun
Which statement BEST expresses the central idea of the passage?
Space is filled with stars, planets, and galaxies that humans can study
Scientists use units like miles and kilometers to measure the solar system
Models and scales are necessary to understand the enormous sizes and distances in the universe
Earth is a small planet in space, but it is still unique compared to other objects
Why does the author end the passage by comparing Earth to a marble floating in space?
To highlight Earth’s shape, which is round like a marble
To remind readers that Earth is small when compared to the vast scale of the universe
To show that Earth’s oceans cover most of its surface, giving it a smooth, marble-like look
To explain why Earth looks smaller than the Sun and the Moon during an eclipse
Page 3:
The beluga whale weighs more than 2,000 pounds?
True
False
Page 4:
The blue whale is the smallest animal that ever lived on Earth.
True
False
Page 5:
How do astronauts travel once they're on the moon?
airplane
train
rover
satellite
Pages 6-7:
The Earth is smaller than the moon, blue whale, a house, a city, or even a whole country.
True
False
Page 8:
What is the diameter of Earth?
12,100
12,760
49,530
51,120
Pages 10-11:
The sun is the biggest object in our solar system.
True
False
Page 12:
Which Star is missing based on diameter (smallest to largest) in Kilometers?
Proxima Centauri, sun, ___________, Arcturus
Betelgeuse
Debeb
Polaris
Sirius
Page 15:
How long would it take a car to travel from Earth to the sun without stopping?
140 years
150 years
160 years
170 years
Pages 16-17:
Which planet is more than 4 billion kilometers from the sun?
Jupiter
Uranus
Saturn
Neptune
Page 19:
How many light years is Arcturus from the Earth?
37
433
3,230
643
How many miles is it to walk all the way around the moon?
4,000
5,000
6,000
7,000
True or False?
There are about 150 countries on Earth.
True
False
Which planet is about the same size as Earth?
Mercury
Venus
Mars
Neptune
How many Earths wide is Jupiter?
9
10
11
12
True or False?
Our Sun is one of the three largest stars in the universe.
True
False
Which star mentioned in the book is the largest?
Deneb
Arcturus
Betelgeuse
Polaris
How long would it take to drive to the Sun from Earth without stopping?
100 years
80 years
220 years
160 years
Which three stars are in Orion's belt?
Alnitak, Betelgeuse, Polaris
Mintaka, Deneb, Alnilam
Alnitak, Alnilam, Arcturus
Mintaka, Alnitak, Alnilam
Which word means, "the distance across a sphere or circle"?
radius
light-year
diameter
diagram
Earth
Mars
Saturn
Jupiter
Sun
Label the four Jovian planets, also known as gas giants or ice giants.
Place the planet names in the correct spot.
Identify and fill in the names of the planets.
Correctly label this picture.
Saturn
Jupiter
Earth
Which statement correctly describes a star?
A sphere of dust and gases that contains many elements and produces light from fusion and fission reactions
A collection of gases from several nebulae hot enough to cause a nuclear reaction
A sphere of matter with a density and a temperature great enough to cause a nuclear reaction at its center
A collection of hot gases that forms a sphere but produces no light
