Zella Williams

• Selena Gomez
• Experiments on the Weather (Do-It-Yorself Science)
• America Fererra
• Experiments on Rocks and the Rock Cycle (Do-It-Yourself Science)
• Shakira
• Word Problems Using Fractions
• Word Problems Using Ratios and Proportions
• America Fererra
• America Fererra
• Coqui frogs and other Latin American frogs
• Experiments About Planet Earth (Do-It-Yourself Science)
• Experiments About the Natural World (Do-It-Yourself Science)