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In this activity, learners make self-assembled polymer spheres.

In this dynamic activity, learners build a catapult that launches projectiles, such as marshmallows.

In this design challenge, learners use their creativity and imagination to design and test a wildlife crossing for their favorite animal.

In this water activity, learners build boats that float and sink. First, learners listen to the book, "Who Sank the Boat" and practice making predictions throughout the story.

In this hands-on science experiment, students combine their understanding of the different states of matter and the characteristics of various chemical reactions.

In this activity on page 7 of the PDF, learners explore how engineers characterize building materials.