fact and question: sunlight and rain can cause a rainbow
Question: Rainbows need

What's the answer?

answer: sun and some drizzle

fact and question: the moon 's surface contains many craters
Question: The moon has many craters on the surface due to space rocks

What's the answer?

answer: bumping into it

fact and question: baking soda can react chemically with vinegar
Question: A chemical reaction to vinegar or to baking soda can be caused by adding

What's the answer?

answer: cola

fact and question: planets orbit stars
Question: Which orbits a star?

What's the answer?

answer:
Neptune