S1·E4 – Energy
• 15 min
We can't see energy, but we can observe what energy does. Rex and Judy show that energy exists in anything that that lights up, heats up, moves, or grows.
• 15 min
We can't see energy, but we can observe what energy does. Rex and Judy show that energy exists in anything that that lights up, heats up, moves, or grows.
