1
What is the chemical formula for water?
2
What gas do plants produce during photosynthesis?
3
Which planet is known as the Red Planet?
4
What is the force that keeps us on the ground?
5
What is the process by which plants make food?
6
What is the largest organ in the human body?
7
Which gas do animals exhale that plants use?
8
What is the boiling point of water at sea level in Celsius?
9
What is the process of changing from a solid to a liquid called?
10