Unit4 ag5

6. The thin, outer layer of Earth where we live.
8. To make something smaller or less.
11. The rise and fall of ocean water caused by the moon’s gravity.
12. To move in a loop or flow, like blood or water.
15. Proof or clues that show something is true.
17. A natural process where gases in Earth's atmosphere trap heat, keeping the planet warm.
19. Something amazing or unusual that can be seen or experienced.
22. All living things on Earth and where they live.
23. When liquid water changes into a gas called water vapor and rises into the air.
24. The solid part of Earth, like rocks, mountains, and soil.
26. The layer of air and gases that surrounds Earth.
27. Movements of water in the ocean, like a river in the sea.
29. Things you notice or see to learn about something.
30. Water: Water that is clean and safe to drink, like in rivers and lakes, not salty.
31. Always behaving or happening in the same way.
32. To talk, work, or play together.
33. To make something bigger or more.
36. The very center of the Earth, made of hot metals.
37. Water that falls from the sky as rain, snow, sleet, or hail.
38. When things or people act on or communicate with each other.

1. Spread out or shared across different places or people.
2. All the water on Earth, like oceans, rivers, lakes, and even ice.
3. The way water moves through the environment, including evaporation, condensation, and precipitation.
4. The solid outer part of Earth, including the crust and upper mantle.
5. Tiny drops of liquid, like water or rain.
7. To tell the difference between two or more things.
9. To be all around something or someone.
10. A round shape like a ball or globe.
13. A huge, slow-moving sheet of ice found in cold places.
14. Places where water is stored, like lakes, tanks, or underground spaces.
16. When living things or systems rely on each other to survive or work well.
18. Depending on each other to meet needs or complete tasks.
20. The thick layer of rock under the Earth's crust.
21. Underground spaces that hold water, like a natural storage tank.
25. Mixtures where substances are evenly spread out, like sugar dissolved in water.
28. Water found under the ground, in soil or rocks.
34. First or most important.
35. How salty water is.