1. If you *heat* water to 100 degrees Celsius, it *boils*.
2. If the sun *sets*, it *gets* dark.
3. If you *mix* red and blue, you *get* purple.
4. If it *rains*, the ground *gets* wet.
5. If you *touch* fire, it *burns* you.
6. If plants *don’t get* sunlight, they *die*.
7. If you *freeze* water, it *turns* into ice.
8. If you *eat* too much, you *gain* weight.
9. If you *press* this button, the machine *starts*.
10. If dogs *see* a stranger, they *bark*.

1. If you *drop* an object, it *falls*.
2. If the temperature *is* below zero, water *freezes*.
3. If you *don’t water* plants, they *wilt*.
4. If you *heat* ice, it *melts*.
5. If you *press* the switch, the light *turns* on.
6. If people *exercise* regularly, they *stay* healthy.
7. If you *open* the window, fresh air *comes* in.
8. If you *don’t sleep* enough, you *feel* tired.
9. If cats *see* a mouse, they *chase* it.
10. If you *combine* hydrogen and oxygen, you *get* water.