The Solar System Quiz

Explanation
Pluto is considered the smallest planet because it has the smallest diameter and mass compared to other planets in our solar system. In 2006, the International Astronomical Union redefined the definition of a planet, and Pluto no longer met the criteria. It was reclassified as a "dwarf planet." Despite this reclassification, many people still refer to Pluto as the smallest planet due to its historical status and its unique characteristics.

Explanation
The sun provides light, heat, and energy to the Earth. Light enables us to see and is essential for photosynthesis in plants. Heat from the sun warms the Earth's surface, creating weather patterns and providing energy for various processes. Energy from the sun is harnessed through solar panels and is used for electricity generation. Therefore, all of the above options accurately describe what the sun provides to the Earth.

Explanation
Jupiter is the largest planet in the solar system. It has a diameter of about 86,881 miles, which is more than 11 times the diameter of Earth. It is also the fifth planet from the Sun and is known for its distinct bands of clouds and its iconic Great Red Spot, which is a massive storm. Jupiter's size is due to its high mass and gravitational pull, allowing it to gather a large amount of gas and debris during its formation.

Explanation
Earth is the 5th largest planet in our solar system. It is smaller than Jupiter, Saturn, Uranus, and Neptune, but larger than Mercury, Venus, and Mars.

Explanation
Mercury is the closest planet to the sun. It orbits the sun at an average distance of about 36 million miles, making it the closest planet to the sun in our solar system. Pluto, Earth, and Uranus are all much farther away from the sun than Mercury, so they cannot be the correct answer.