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Before there were clocks, people used shadows to tell time. In this outdoor activity, learners will discover how to tell time using only a compass, a pencil, a handy printout, and a sunny day.

In this indoor and/or outdoor activity, learners make an anemometer (an instrument to measure wind speed) out of a protractor, a ping pong ball and a length of thread or fishing line.

In this engineering/design activity, learners make a kite, fly it, and then work to improve the design. Learners explore how their kite design variations affect flight.

In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.

In this meteorological activity, learners get to build their very own anemometer (instrument for measuring wind speed) using a paper cup.

Use this Moon Map Guide to help learners identify features on the Moon, while looking through a telescope.

In this activity, learners use their hands as tools for indirect measurement.

In this meteorology activity, learners build weather vanes using straws, paperclips, and cardstock.

In this water activity, learners discover ways to move water across the water table.

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.

In this activity, learners make their own Sun tracker to explore how ancient civilizations around the world studied the Sun.

In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.