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Universe Worksheets For Grade 4
Universe worksheets for grade 4 students cover different topics related to the universe like celestial bodies, and solar system. It helps students learn about the planets, satellites, solar system, celestial bodies, galaxies, etc.
Celestial Body
Stars are massive celestial bodies composed mainly of hydrogen and helium, generating energy through nuclear fusion. Asteroids are rocky remnants from the formation of the solar system, found primarily in the asteroid belt between Mars and Jupiter. Comets are icy bodies consisting of dust, rock, and frozen gases, orbiting the Sun in highly elliptical paths. Meteors are small, rocky, or metallic debris that enter Earth's atmosphere, creating bright streaks of light, while meteoroids are their counterparts in space before entering the atmosphere.
Solar System
The solar system comprises the Sun and its orbiting eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. These planets differ in size, composition, and atmosphere. Inner planets, Mercury to Mars, are rocky and terrestrial, while outer planets, Jupiter to Neptune, are gas giants composed mainly of hydrogen and helium. Pluto considered the ninth planet, is now classified as a dwarf planet. Artificial satellites are human-made objects launched into space for various purposes, such as communication, navigation, and scientific research. Natural satellites, like Earth's moon, are celestial bodies that orbit around the planets.
