Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

This fun science project explores the climate change over the course of the history of Earth and helps construct a diorama representing a geologic time period.

Science fair project which determines whether your current calorie intake will cause you to lose or gain weight over time.

Observe trends in the properties of writing materials over past 5000 years and extrapolate to future time. Prepare a table that compares writing material.

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.

The objective of this science fair project it to determine whether adding ethanol alcohol to gasoline slows the run time of a motor.