Across
- 3. The act of noticing and describing events or processes in a careful way
- 6. The basic unit of a chemical element, made up of protons, neutrons, and electrons
- 10. Information collected during an experiment or observation
- 11. A form of energy that can be seen and travels in waves
- 12. The amount of space an object or substance takes up
- 15. Water that falls from the sky as rain, snow, sleet, or hail
- 17. The ability to do work or cause change; exists in many forms, like heat, light, and motion
- 21. Cycle The continuous process by which water moves from Earth's surface to the atmosphere and back
- 22. A visual way of showing data, often using lines, bars, or dots to represent values
- 23. The natural environment where an organism lives
- 24. A community of living things and their environment, interacting together
- 27. A personal belief or judgment that is not based on proof or scientific evidence
- 28. A measure of how hot or cold something is
- 29. The basic unit of length in the metric system, equal to 100 centimeters
- 30. Anything that has mass and takes up space
- 31. The amount of mass in a given volume; calculated as mass divided by volume
Down
- 1. Tiny, single-celled organisms that can be found almost everywhere; some are helpful, others can cause disease
- 2. Everything around a living thing, including other organisms, climate, and landscape
- 4. The conditions of the atmosphere at a particular time and place, like temperature, humidity, and wind
- 5. The force that pulls objects toward each other, especially toward Earth
- 7. Harmful substances that contaminate the air, water, or soil
- 8. The remains or impression of a plant or animal preserved in rock
- 9. The study of matter and the changes it goes through
- 13. Any factor that can change in an experiment
- 14. The form of energy transferred between objects of different temperatures
- 15. The process by which plants use sunlight to make food from carbon dioxide and water
- 16. A push or pull that can change the motion of an object
- 18. To find the size, amount, or degree of something, usually with tools or instruments
- 19. A statement that can be proven to be true
- 20. An element found in all living things; a key part of many biological molecules
- 23. An educated guess about what might happen in an experiment, based on prior knowledge
- 25. A group of atoms bonded together, representing the smallest unit of a chemical compound
- 26. The typical weather conditions in a region over a long period of time