Examples of a hypothesis include: If you drop a rock and a feather, (then) they will fall at the same rate. Plants need sunlight in order to live. (if sunlight, then life) Eating sugar gives you energy. (if sugar, then energy)

Here are some research hypothesis examples: If you leave the lights on, then it takes longer for people to fall asleep. If you refrigerate apples, they last longer before going bad. If you keep the curtains closed, then you need less electricity to heat or cool the house (the electric bill is lower).

Here are some good scientific hypothesis examples: Scientific Hypothesis Examples Hypothesis: All forks have three tines. This would be disproven if you find any fork with a different number of tines. Hypothesis: There is no relationship between smoking and lung cancer.