science

• an asteroid is a small rocky celestial body orbiting the sun.
• a planet is an astronomical body that orbits around a star, such as earth.
• the sun is the largest object in our solar system
• the moon is a natural satellite that revolves around a planet
• a comet is an ice-covered ball that orbits around the sun, leaving behind a tail as it gets closer to the sun
• the earth's atmosphere consists of nitrogen (78%), oxygen (21%) and other gases such as carbon dioxide, argon and helium.
• the moon is the only natural satellite of the earth
• the troposphere is the lowest layer of the atmosphere where weather occurs.
• the milky way galaxy is where we live
• a comet is a celestial object made up of ice, dust, and gas.
• a comet is a celestial object made up of ice, dust, and gas.
• a meteorite is a solid piece of space debris that enters the atmosphere at high speed and burns up to form a streak of light called a meteor.
• a meteorite is a piece of space debris that enters the atmosphere at high speed and burns up due to friction with air molecules
• the big bang theory states that the universe began with one singularity which exploded to create everything we see today
• the big bang theory states that the universe began with one singularity which expanded to form everything we see today
• the stratosphere is above the troposhere and contains ozone which protects us from uv radiation.
• a black hole is a region where gravity pulls so strongly that nothing can escape, not even light