Photosynthesis
|
|
2.9 |
|
|
Tarantulas
|
|
1.0 |
|
|
Trapdoor Spiders
|
|
1.0 |
|
|
India
|
|
2.7 |
|
|
Obeying Laws
|
|
2.7 |
|
|
Meat-Eating Plants
|
|
2.9 |
|
|
Black Bears
|
|
1.0 |
|
|
Moose
|
|
1.0 |
|
|
Legislative Branch
|
|
3.1 |
|
|
Prairie Dogs
|
|
1.0 |
|
|
Titanic
|
|
2.9 |
|
|
Needs and Wants
|
|
0.9 |
|
|
Chernobyl
|
|
2.9 |
|
|
Saturn
|
|
1.0 |
|
|
Labor Day
|
|
1.0 |
|
|
Día de la Tierra (Earth Day)
|
|
1.5 |
|
|
En contra de la intimidación (Resisting Bullying)
|
|
0.7 |
|
|
Presidents' Day
|
|
1.0 |
|
|
Deepwater Horizon
|
|
2.9 |
|
|
Necesidades y deseos (Needs and Wants)
|
|
1.9 |
|
|
Día del Presidente (Presidents' Day)
|
|
1.2 |
|
|
Se inteligente con tu dinero (Money Smarts) (4 titles)
|
|
|
|
|
Gateway Arch
|
|
1.0 |
|
|
Super Hummingbirds
|
|
2.8 |
|
|
