Design a hearing protection device to protect their ears from loud noises. Examine the properties of current protective hearing devices, materials.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Explore concepts in current and coltage with these Van de Graaff generator experiments.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.