Could someone give questions for 5th grade in Science? I will mark brainliest!!
Answers
Question: What is the atmosphere?
Answer: Air is a layer around the earth. This layer is called the earth’s atmosphere.
Question: Name the various layers of the atmosphere.
Answer: The various layers of the atmosphere are:
Troposhere
Stratosphere
Mesosphere
Thermosphere
Exosphere
Question: How does the atmosphere protect us from meteoroid hits?
Answer: The atmosphere protects us from meteoroid hits by burning them up in the mesosphere before they can hit the surface of the earth.
Question: What is air pressure.
Answer: The weight of air pushes everything around it in all directions is called air pressure.
Question: Name any three impurities that make unfit for use.
Answer: The three impurities that make unfit for use are:
Sand
Mud
Dirt
Question: The two types of impurities in water? Give examples.
Answer: The two types of impurities in water are:
Impurities that dissolve in water are called soluble impurities.
Eg: salt, sugar.
Impurities that do not dissolve in water are called insoluble impurities.
Eg: sand, mud.
Answer: A push or pull acting on an object is called force.
Question: What is gravity?
Answer: The force that attracts objects towards the center of the earth is called gravity.
Question: What is magnetism?
Answer: The push or pull applied by a magnet on metals like iron and nickel and on other magnets is called magnetism.
Answer: The ability to do work is called energy. The four types of energy are heat energy, light energy, wind energy and sound energy.
Question: What is a machine?
Answer: A machine is a tool that makes our work easier by helping us overcome a larger force (load) by applying lesser force (effort).