| Nuestra maravillosa Tierra (Our Amazing Earth) |
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| Oceans Inside Out |
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6.2 |
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| Ocean Storm Alert! |
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6.9 |
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| Oil and Gas |
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7.2 |
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| Otòn (Fall) |
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| Otoño (Fall) |
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| Our Amazing Earth |
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| Our Five Senses |
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| Our Future in Space (4 titles) |
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| Our Sun Is a Star |
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| Plague and Pandemic Alert! |
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8.0 |
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| Plant Fossils |
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6.2 |
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| Plate Tectonics |
NEW
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| Pluto |
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| Prentan (Spring) |
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| Preparing for Disasters |
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6.2 |
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| Primavera (Spring) |
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| Printemps (Spring) |
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| Project Apollo: The Race to Land on the Moon |
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5.9 |
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| Protecting Earth's Surface |
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| Protecting Our Planet (6 titles) |
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| ¿Qué son los planetas? (What Are Planets?) |
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| Rain Forest Extremes |
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5.6 |
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| Rain Forests Inside Out |
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6.0 |
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Canada
USA
