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In this activity (on pages 10-15), learners investigate starch in human diets and how plants make starch (carbohydrates) to use as their food source.

In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.

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 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 fascinating and fun experiment, learners use chemistry to identify a mystery powder and to solve a "crime," a process similar to that used by real forensic scientists.

In this experiment, learners will conduct chemical and physical tests to identify mystery substances.

In this activity on page 7 of the PDF (Water in Our World), learners make their own water treatment systems for cleaning water.