Across
- 3. The scientific study of life in water environments. Hydrobiologists research plants, animals, and microorganisms that live in oceans, rivers, lakes, and other aquatic habitats.
- 6. Relating to electricity produced by the power of moving water. Hydroelectric dams use flowing rivers to turn generators and create clean energy.
- 8. A chart or graph that shows how the flow of water in a river or stream changes over time. Hydrographs help scientists track flooding, droughts, and seasonal water patterns.
- 9. To add water to something, or to drink enough water to keep your body healthy. When you hydrate, you're giving your body the water it needs to function properly.
Down
- 1. A colorless, odorless gas that is the lightest and most abundant element in the universe. Hydrogen can be used as a clean fuel source and is found in water (H₂O).
- 2. Energy created by using the force of moving or falling water. Hydropower is a renewable energy source that can generate electricity without producing pollution.
- 4. A boat with special underwater wings that lift it above the water's surface when moving fast. This design reduces drag and allows the boat to travel more quickly and smoothly.
- 5. The study of sound in water environments. Scientists use hydroacoustics to study marine animals, map the ocean floor, and detect underwater objects using sound waves.
- 7. A water outlet, usually found on streets, that firefighters connect hoses to for fighting fires. Fire hydrants provide a strong flow of water from underground pipes.