Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Which do you prefer: real or artificial? Try this sweet little taste experiment to help your kids develop a better awareness of the food they consume.

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

Make sourdough bread...and learn some colonial history and modern science in the process!

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.