Across
- 4. A substance formed in a chemical reaction.
- 6. The total area of an object, for example the area of a skydiver's body facing the air as they fall, or the area of a car tyre that touches the road.
- 8. A substance that changes the rate of a chemical reaction without being changed by the reaction itself.
- 9. A protein which catalyses or speeds up a chemical reaction.
- 10. The amount of matter an object contains. Measured in kilograms (kg) or grams (g).
Down
- 1. Tells us how much of a substance is dissolved in water. The higher the value, the more particles of the substance are present.
- 2. A collision between reactant particles that has enough energy for a reaction to happen.
- 3. Another word for steepness. On a graph, defined as being the change in the 'y' value divided by the change in the 'x' value. It defines how steep a line is.
- 5. Chart showing how the energy of reactants and products changes during a reaction.
- 7. A substance that reacts together with another substance to form products during a chemical reaction.