一级 Lesson
01 We Eat Flowers!
02 Not Just for Food
03 Keeping Warm
04 Animals Help People
05 Your Senses
06 All Grown Up
07 How Old is that Tre？
08 Save the Forests
09 The Seasons
10 Bad Weather
11 Dirt is Good!
12 Soil Homes
13 Energy
14 Electricity
二级 Lesson
01 Sharks
02 The Pacific Ocean
03 Pollution
04 We've Struck Gold!
05 Let's Use a Rock
06 Mount Rushmore
07 Let's Ride into Space
08 Eclipse
09 How Much Do You Weigh？
10 Bones
11 Wow! That's Tall !
12 Staying Healthy
13 Edison the Wizard
14 A Dream Come True
15 Great Player, Great Heart
