With a focus on STEM and late-breaking information, this book shows how scientists have made discoveries about Earth throughout history and how they will continue to do so in the future.
Vivid photos and up-to-date information teach readers about Mars, including details on climate and geography, how scientists have explored the planet, and what they hope to find out about Mars in the future.
Readers follow along as the moon shifts from new to full and back again, learning the words for each lunar phase and how the sun's light creates the moon shapes they see in the sky.
Just like a substitute teaches your class,/when she's asked to fill in for your teacher,/a pronoun steps in as a sub for a noun,/ becoming the star of the feature.
