Review the core sentences before starting the interactive session.
What is the force that makes objects fall to the ground?
What is the process of plants losing water called?
What is the force that makes things float in water?
What is the process of a solid turning directly into a gas called?
What is the process of a gas turning into a liquid called?
What is the process of a liquid turning into a gas called?
What is the colored part of the eye that controls how much light enters?
What is the force that makes objects fall to the ground?