Classic Crosswords Science Hard — Set 13

Across

1. 1. A tiny particle of light energy
2. 6. The process of making new living things
3. 8. A group of living things that are the same kind

Down

1. 2. An educated guess about what will happen in an experiment
2. 3. To sort things into groups based on their features
3. 4. A substance made of two or more elements bonded together
4. 5. The band of colors formed when white light is split
5. 7. The central part of a cell that controls its activity

Across

1. 2. Any living thing such as a plant or animal
2. 5. A unit of information that passes traits from parents to children
3. 6. A state of matter that flows and takes the shape of its container
4. 8. The amount of matter in an object
5. 9. A quick back-and-forth movement

Down

1. 1. Two or more atoms joined together
2. 3. An object that attracts iron and some other metals
3. 4. The breaking down of rocks by weather, water, and living things
4. 7. How tightly packed the matter is in something

Across

1. 2. The tiny building block that makes up all living things
2. 4. A tool that makes very tiny things look bigger
3. 7. A tiny particle of light energy
4. 8. The act of moving or changing position

Down

1. 1. The bending of light as it passes from one material to another
2. 3. The upward force that makes things float in water
3. 5. Facts that show something is true
4. 6. The power that makes things move or change

Across

1. 3. How often something happens in a given time
2. 4. Facts that show something is true
3. 8. The part of an experiment that stays the same for comparison
4. 10. A quick back-and-forth movement

Down

1. 1. A unit of information that passes traits from parents to children
2. 2. A group of living things that are the same kind
3. 5. The tendency of an object to stay still or keep moving
4. 6. The smallest piece of matter that makes up everything
5. 7. A pure substance made of only one type of atom
6. 9. A state of matter that holds its shape

Across

1. 1. Any water that falls from clouds such as rain, snow, or hail

Down