Code Cracker Puzzles Themed Nature Easy — Set 28

Across

1. 1. To find the size, amount, or degree of something
2. 3. To sort things into groups based on their features
3. 5. A tiny particle of light energy
4. 6. The breaking down of rocks by weather, water, and living things
5. 7. The tendency of an object to stay still or keep moving
6. 8. A pure substance made of only one type of atom

Down

1. 2. When water changes from a liquid to a gas
2. 4. To study something carefully to understand it

Across

1. 5. Related to the large plates that make up Earth's surface
2. 7. The amount of matter in an object
3. 8. A material that does not let electricity or heat pass through easily

Down

1. 1. A quick back-and-forth movement
2. 2. A pure substance made of only one type of atom
3. 3. A change in a living thing that helps it survive
4. 4. The central part of a cell that controls its activity
5. 6. A state of matter that spreads to fill any space

Across

1. 1. A hard solid piece of the Earth made of minerals
2. 5. The process of getting bigger or more developed
3. 6. The distance between one wave peak and the next
4. 7. A state of matter that flows and takes the shape of its container
5. 8. The act of moving or changing position

Down

1. 2. Carefully watching and noting what happens
2. 3. The bending of light as it passes from one material to another
3. 4. A quick back-and-forth movement

Across

1. 1. To find the size, amount, or degree of something
2. 3. A group of living things that are the same kind
3. 6. The slow process of living things changing over many years
4. 7. A mixture where one substance dissolves completely in another
5. 8. A tool for measuring temperature

Down

1. 2. The process of making new living things
2. 4. To study something carefully to understand it
3. 5. A material that does not let electricity or heat pass through easily

Across

1. 1. The breaking down of rocks by weather, water, and living things

Down