HomeVocabularyScienceGrades 3–4 › Hypothesis
Science · Grades 3–4

Hypothesis

noun

A testable explanation or prediction about a scientific question.

Example Sentences

"Her hypothesis was that plants grow faster with more sunlight."

"Scientists test a hypothesis by doing controlled experiments."

Synonyms & Related Terms

theorypredictioneducated guess

Quick Check

Which best describes the meaning of hypothesis?

Study Tips

To remember hypothesis, try writing it in a sentence of your own. Connect it to something you already know about science.

Use it in conversation today — saying a word aloud three times helps lock it into long-term memory.