Science

3. Related to substances, reactions, or properties involving elements and compounds.
5. A chemical substance that has a sour taste, can dissolve certain materials, and has a pH lower than 7.
6. The remains or traces of plants and animals preserved in rock, providing evidence of past life.
7. A tool used to see very small objects or organisms that cannot be seen with the naked eye.
10. A large object in space that orbits around a star and does not produce its own light.
11. The collection of planets, moons, and other objects that orbit around the Sun.
12. An instrument used to observe distant objects in space, making them appear closer and larger.
13. The force produced by magnets that attracts or repels certain materials.
15. A molecule that contains the genetic instructions for the development and functioning of living organisms.

1. A form of energy that is carried through wires and used to power machines and devices.
2. A mountain with a hole on top that can erupt and release hot lava, ash, and gases.
4. A community of living organisms and their environment, interacting and functioning together.
8. A scientific activity that is conducted to test a hypothesis or discover something new.
9. The force that pulls objects toward each other, especially the force that pulls them to the surface of the Earth.
13. An object that produces a magnetic field and attracts or repels other objects made of certain materials.
14. A large system of stars, gas, and dust held together by gravitational forces.