Earth,s system Flashcards
What is the primary star in Earth’s solar system?
The Sun
True or False: Earth is the third planet from the Sun.
True
Fill in the blank: The four inner planets of the solar system are Mercury, Venus, Earth, and ______.
Mars
What is the largest planet in Earth’s solar system?
Jupiter
Which planet is known as the ‘Red Planet’?
Mars
What is the main component of Earth’s atmosphere?
Nitrogen
Multiple Choice: Which of the following is a gas giant? A) Earth B) Venus C) Saturn D) Mars
C) Saturn
What is the average distance from Earth to the Sun?
Approximately 93 million miles (150 million kilometers)
True or False: Earth has two natural satellites.
False
What is the term for the path that Earth takes around the Sun?
Orbit
Fill in the blank: The __________ is the region of space where Earth’s gravitational influence is dominant.
Solar System
What is the phenomenon that causes the seasons on Earth?
The tilt of Earth’s axis
Multiple Choice: What is the primary reason for the phases of the Moon? A) Earth’s shadow B) The Moon’s orbit C) Sun’s position D) Atmospheric conditions
B) The Moon’s orbit
What is the term for the layer of gases surrounding Earth?
Atmosphere
True or False: Earth is the only planet known to support life.
True
Which planet is known for its rings?
Saturn
What is the second planet from the Sun?
Venus
Fill in the blank: The ________ is the zone around the Sun where conditions are suitable for liquid water.
Habitable Zone
What is the approximate age of Earth?
About 4.5 billion years
Multiple Choice: Which of the following is NOT a terrestrial planet? A) Earth B) Mercury C) Neptune D) Venus
C) Neptune
What is the process by which plants convert sunlight into energy?
Photosynthesis
True or False: The Earth rotates on its axis once every 24 hours.
True
