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The Ancient Egyptians used a naturally-occurring salt from the banks of the Nile River, called natron, to mummify their dead.

In this design challenge, learners design a storm drain cover that catches litter to protect waterways to learn about how local actions can have system-level effects.

In this activity, learners build unique sound enhancing inventions with items from around the house to amplify sound from their smart phone's speakers.

In this activity, learners build mini-basketball courts using cardboard and measuring spoons. Use this activity to introduce learners to catapults, forces, and levers.

In this activity, learners construct wands that play different notes depending on information from light sensors programmed via a PICO Cricket.

In "Chemistry is Colorful" learners explore different materials through paper chromatography.

In this outdoor activity and game, learners collect and sort leaf samples to determine how many types of plants grow in the activity site.

In this activity, learners build a mini dancing robot. This engineering activity introduces learners to electricity, circuits, switches, conductivity, and motors.

In this activity, learners use beads, which represent amino acids, to create protein bracelets. Learners examine the relationship between amino acids and proteins.

As a long-term project, you can rear monarch butterflies at home or in a classroom.

This fun and simple hands-on astronomy activity lets learners make 3-dimensional models of the Earth and Moon.

In this physics activity, learners build a toy with a figure that spins around like a gymnast on the high bar.

In this activity on page 8 of the PDF, learners make a slimy substance very similar to mucus, and sprinkle it with glitter to imitate the way that allergens are trapped.

Make a one-string "guitar" by stringing a cup with some fishing line. You amplify the plucking of the string by placing a piezo contact microphone and mini battery powered amplifier inside the cup.

This outdoor activity/field trip requires a place where minnows swim, such as a local pond or brook.

In this activity, learners build a bird that flies in place with help from a motor, wire, and some straws.

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 (pages 13-14), learners investigate the properties of smart materials, which are materials that respond to things that happen around them.

In this two part activity, learners become draft detectives by constructing their own draft catchers to detect drafts around windows or doors.

In this math-based activity, learners will experiment to find how height and angle affect spatter and then use this knowledge to solve a crime.