Venus

Venus is the second planet from the Sun and is often referred to as Earth's sister planet due to their similar size and composition. It is named after the Roman goddess of love and beauty.

Physical Characteristics

Size: Venus is similar in size to Earth, with a diameter of about 12,104 kilometers.
Atmosphere: The atmosphere of Venus is primarily composed of carbon dioxide, with clouds of sulfuric acid, causing a strong greenhouse effect that traps heat.
Surface: Venus has a rocky surface with mountains, volcanoes, and large impact craters. The surface is extremely hot, with temperatures reaching up to 465°C (869°F).

Orbit and Rotation

Orbit: Venus orbits the Sun at an average distance of about 108 million kilometers.
Rotation: Venus rotates on its axis very slowly, taking about 243 Earth days to complete one rotation. Interestingly, its rotation is retrograde, meaning it rotates in the opposite direction to most other planets.

Study Guide

What is the name of the second planet from the Sun?
Answer: Venus
Why is Venus often referred to as Earth's sister planet?
Answer: Due to their similar size and composition
What is the primary component of Venus' atmosphere?
Answer: Carbon dioxide
What causes the extremely high temperatures on Venus' surface?
Answer: The greenhouse effect
How long does it take Venus to complete one rotation?
Answer: About 243 Earth days
What is unique about Venus' rotation compared to most other planets?
Answer: It has a retrograde rotation

◂Science Worksheets and Study Guides Second Grade. The sun and earth

Vocabulary/Answer key

The sun and earth

The resources above cover the following skills:

Concepts of Earth Science: A student should understand and be able to apply the concepts, processes, theories, models, evidence, and systems of earth and space sciences. A student who meets the content standard should:

Develop an understanding of the cyclical changes controlled by energy from the sun and by Earth's position and motion in our solar system.