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In this creative roleplay activity, learners will explore the various processes of the carbon cycle using movement and props to aid in comprehension.

In this activity, learners write invisible messages on goldenrod paper, and make the message appear and disappear using acids and bases.

Students design and build their own parachutes in this hands-on engineering project.

In this activity, learners build a racecar using only a rubber band, spool, straw, and paper clip! This racer is a classic toy that zips across a flat surface.

Students design and create their own air-powered rockets, in this hands-on activity.

In this activity, learners build a simple solar oven out of household materials to melt chocolate and marshmallow between graham crackers--known as s'mores.

In this activity, learners design wind-powered cars out of simple household materials. Students have fun designing and then racing their vehicles around the room.

In this tasty activity, learners make their own ice cream any day of the year in an exploration of heat and cold. Highlights include freezing and melting and the transition from liquid to solid.

This fun activity uses simple materials such as milk cartons and mirrors to introduce the ideas of optics and visual perception.

In this design activity, learners create a vehicle that can transport a load, like a favorite toy or as a recycled object, from the top of a zipline to the bottom using only gravity.

In this hands-on experiment, kids use chemistry to explore whether acids or bases are better at restoring a penny’s shine.

In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear.

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 hands-on activity, learners determine the types of chemical reactions achieved when combining different household products.

In this activity, learners separate the protein from milk and and use it to make their own glue.

In this activity (page 4), learners work in groups to plan and build large structures using recyclable materials they have brought from home.

Learners smell balloons filled with different scents to guess what's inside. From this, they infer the presence and motion of scented molecules.