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In this chemistry challenge, learners identify which plants have the enzyme "catalase" that breaks hydrogen peroxide into water and oxygen.

This exercise is designed to teach young learners the different parts of a plant (root, stems, leaves, flowers, fruit, and seeds), the basic functions of each part, and to show that tiny microscopic o

In this chemistry challenge, learners work to figure out which of four juices are real, and which is just food coloring and sugar.

In this math lesson, learners are introduced to proportional reasoning through modeling, sharing, and questioning techniques.

In this math lesson, learners use fruit to learn about proportions and percentages. Learners compare the weights of the edible and non-edible portions of fruit.