| The acid caused corrosion. | |
| For water to be a solid you must freeze it. * | |
oxygen
| Oxygen is a gas. * |
| A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. * | |
| Relating to or containing an alkali; having a ph greater than 7;. * | |
| A toad is an amphibian. * | |
| The force between two moving surfaces or objects is called friction. * | |
| Predator is a person or an animal that hunts a smaller weaker person or animal. * | |
| absorb | The process of something soaking, either literally or figuratively. * |
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