Which of the following would be a testable hypothesis?

Question

Answer
If certain foods are healthy for you, then they should also taste good.
Dropping a ball from a height of 10 m will cause it to bounce back up 5 m.
Plants produce glucose as the end product of photosynthesis.
If acid is added to a solution, then the pH of the solution will go down.

Answer 1

A testable hypothesis is a statement that can be supported or refuted through experimentation or observation. Among the options provided, the following is a testable hypothesis:

If acid is added to a solution, then the pH of the solution will go down.

This hypothesis can be tested by adding acid to various solutions and measuring the pH before and after the addition, allowing for clear experimental results.

The other options either involve subjective interpretations (e.g., taste) or cannot be as easily measured (e.g., the bouncing height of a ball), making them less suitable as testable hypotheses.