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In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.