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Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube.

In this activity learners will explore how water moves on waxed paper. Learners will use science process skills such as using tools and making observations as they explore surface tension.

In this activity, learners use gumdrops and toothpicks to model the composition and molecular structure of three greenhouse gases: carbon dioxide (CO2), water vapor (H2O) and methane (CH4).

In this activity, learners will make predictions and experiment with different objects to see if they sink or float.