second grader. Please help me with examples of things I can investigate using the scientific method for my homework project. thank you.

You could see what happens when you

* put vinegar in a small glass of milk
* soak a greasy pan in cold water; then soak it in hot water
* mix vinegar and baking soda
* try to grow a plant without light
* pull a cat's tail

OOPS! FORGET THAT LAST ONE.