読解:物理
Unit 1 Why is the sky blue?
Unit 2 Are you shorter standing up?
Unit 3 Newton's laws of motion
Unit 4 How deep can you go snorkeling?
Unit 5 Battling against invisible forces
Unit 6 How can planes y upside down?
Unit 7 How to hunt rainbows
Unit 8 Are there sound waves in space?
Unit 9 The wonders of resonance
Unit 10 Why are so many sparks ying in winter?
Unit 11 Current bene cial and dangerous
Unit 12 Divine sparks
Unit 13 Earth's magnetic eld
Unit 14 Electromagnetism to the rescue
Unit 15 Ways of seeing