Energy

3. A material that allows light to pass through easily, making objects behind it clearly visible.
5. A disturbance that transfers energy through a medium, often seen in water, sound, and light.
7. To bounce back light or sound waves when they hit a surface.
9. The ability to do work or cause change; can exist in various forms such as light, heat, and sound.
10. The movement of energy or waves from one place or object to another.
11. To take in or soak up energy or waves, preventing them from passing through.
12. Words
13. A material that does not allow light to pass through, making objects behind it impossible to see.
15. Anything that has mass and takes up space; includes solids, liquids, and gases.
16. To come into contact with force; often used to describe interactions between particles or waves.

1. The distance between two consecutive points of a wave that are in phase, such as crest to crest or trough to trough.
2. The substance through which a wave travels, such as air, water, or solid materials.
4. The maximum distance a wave moves from its rest position, indicating the wave's energy.
6. To move back and forth quickly, creating sound waves or motion, often seen in musical instruments.
8. A material that allows some light to pass through but not enough to see clearly through it.
14. A small unit of matter, such as an atom or molecule, that can make up larger substances.