simple machine, เครื่องกลอย่างง่ายA tool with few or no moving parts that makes work easier by changing the direction or strength of a push or pull., mechanical system, ระบบเครื่องกล A set of physical parts that work together to perform a task by using forces and motion., generate, สร้าง to produce or create energy or something useful from a source., electric circuit, วงจรไฟฟ้า A closed loop through which electric current flows, consisting of a power source, wires, and components, effort force, แรงพยายาม The force you apply to a machine to move or lift an object (load)., asteroid, ดาวเคราะห์น้อย A small rocky body orbiting the Sun, mainly found in the asteroid belt between Mars and Jupiter., atmosphere, บรรยากาศ The layer of gases surrounding Earth, made mostly of and protects the planet.nitrogen and oxygen, that supports life , lunar eclipse, จันทรุปราคา An event that occurs when the Earth passes between the Sun and the Moon, causing Earth’s, revolution, การหมุนรอบThe orbital movement of one object around another, usually in a fixed path called an orbit shadow to fall on the Moon., constellation, กลุ่มของดาวฤกษ์ที่ปรากฏในท้องฟ้า  A recognized pattern of stars in the sky, often named after mythological figures, animals, or objects, used to map the sky. .

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