What happens if I... ?
What is the fastest/strongest/loudest... ?
Which method produces the most/least/coolest/strangest... ?
What type of bat (wood or aluminum) hits the ball farther?
What style of paper airplane flies the furthest?
What do plants really need to survive?
What cooking powders dissolve in water?
What fruits float?
Do fidget spinners actually help concentration?
(Remember that a science investigation is different than a research project. You can research black holes, but it's hard to investigate them!)
What are the "variables" of your investigation (what one thing will you change while the others stay the same)?
How will you measure what happens in your investigation?
How will you explain what happens (see "Using Models" below!)
(*Your science investigation can also include research -- Just make sure that you go through the investigation process first before you go to Google!)