This is a special longer video ( 22 min) where you can see Mystery Doug at home with his daughters during the coronavirus pandemic. They sent questions to an astronaut who was on the International Space Station.
What is a prism?
What is the clever thing that Isaac Newton did when he was studying light?
Can you make a rainbow without rain? How?
What are reptile bones fossils?
Can you explain the difference between flying and gliding?
What does the bombardier beetle do to attack other animals?