Across
- 4. – A reaction that releases energy to the surroundings, making things feel hotter.
- 5. – A reaction where a substance gains oxygen, like rust forming on iron.
- 7. profile – A diagram that shows how the energy changes during a chemical reaction.
- 8. – A reaction where a more reactive metal pushes out a less reactive metal from its compound.
Down
- 1. combustion – Burning that happens with too little oxygen, making carbon monoxide or soot.
- 2. – A chemical reaction where a fuel burns in oxygen to release heat and light.
- 3. reaction – A change that forms new substances with different properties.
- 4. – A reaction that absorbs energy from the surroundings, making things feel colder.
- 6. reaction – A change where no new substance is made, like melting or dissolving.