4th grade Earth and Space Vocabulary Cards

1. 4th grade Earth and Space Vocabulary Cards

2. Non-renewable Fossil fuels: coal, natural gas, and oil Minerals Nonrenewable resources are resources that nature cannot replace in our lifetime.

3. Renewable Resource Oxygen Soil Water Plants Animals

4. Inexhaustible Resource Sun, wind, and ocean tides

5. Natural Resource Any of the useful minerals and other materials that people take from the Earth.

6. Fossil Fuels A fuel that formed from the decayed remains of ancient plants and animals oil, natural gas, & coal

7. Conservation The wise use and protection of our natural resources. REUSE, REDUCE, & RECYCLE

8. Moon A natural object that orbits a planet.

9. Tide Changes in water level at the shoreline that are caused by the pull of gravity between Earth and its moon.

10. Axis An imaginary line that passes from the North Pole to the South Pole through Earth’s center.

11. Orbit The path an object takes as it moves around another object in space.

12. Revolve Travel in a path – large circle

13. Rotate Spin – The Earth rotates on its axis.

14. Erosion The process of moving sediment from one place to another.

15. Weathering The process by which rock is worn down and broken apart.

16. Deposition The process in which materials eroded by water, wind, or ice are dropped in a new place.

17. Sediment Weathered bits of rocks, soils, sand, shells, and the remains of organisms.

18. Weather Condition of the atmosphere in a certain place at a certain time.

19. Thermometer A tool that measures temperature.

20. Wind Moving air caused by the uneven heating of the Earth’s surface.

21. Humidity A hygrometer measures humidity. The amount of moisture of water vapor in the air.

22. Front The place where one air mass meets and pushes aside another air mass.

23. Air Pressure The weight of air pushing on everything around it.

24. Meteorologist Scientist who studies the weather and makes predictions.

25. Water cycle Change of water from one state to another as it moves between Earth’s surface and the atmosphere.

26. Evaporation evaporation The process of changing from a liquid to a gas.

27. Precipitation precipitation Water that falls to the Earth’s surface as rain, snow, sleet or hail.

28. Accumulation accumulation The collection of water, such as a stream, puddle or lake.

29. Condensation To change from a gas to a liquid as the temperature decreases.

30. Ground Water Water that collects underground in cracks and spaces in rocks.

31. Run-off Water that is not absorbed into the ground, instead flows into streams or other collection areas.

32. Gravity The force that pulls objects towards each other.

33. Soil The loose top layer of the Earth’s surface. It is made up of small pieces of rock (sand and clay), bits of dead plant and animal material (humus), water, air, and living organisms.

34. Humus Decaying plant and animal material in soil.

35. Sand Sand under microscope Soil particles that ring in size from .5 to 2.0 mm in diameter

36. Silt Soil particles that range in size from .002 to .05 mm in diameter.

37. Clay Soil particles less than .002 mm in diameter.

38. Nutrients A substance that an organism needs in order to survive and grow.

39. Potting Soil A mixture of sand, silt, clay, and humus.

40. Retain To hold or to keep.

41. Shadow A dark image cast on the ground or surface when the light is blocked by an object.