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Eighth Grade Science Experiments (top 2,000 results)

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Clean Water and Aquifer Science
Blog Post
Is rainwater that seeps into the ground and passes through layers of soil clean or dirty? In this week's family science spotlight, kids explore how the passage of water through underground layers can result in storages of groundwater that are surprisingly clean! Above: students can explore aquifers and filtration with simulated "dirty water" and model collection bins. Natural Water Filtering In this week's family-friendly science activity, students experiment to see how the process of… Read more
Coastal and Marine Geology
Science Fair Project Idea
Scientific Method
You can study hazards that affect coastal areas. What geological forces cause a tsunami? A tsunami (Japanese for 'harbor wave') is a wave generated by an undersea earthquake, landslip, or volcanic eruption. You can demonstrate what causes a tsunami by simulating an undersea earthquake with a water table. How does the depth of water effect the height of the wave? Do different slopes of bottom change the speed of the wave? Visit the USGS Coastal and Marine Geology Program to find out about… Read more
Collide Head On with this Toy
STEM Activity
Did it ever occur to you that tennis, bowling, Newton’s cradle, and cars bumping into each other all revolve around collisions? It is fascinating how a few rules of physics can predict the outcome of these collisions. You can discover these rules yourself with a fun homemade toy. Do the activity, play with the toys you make and be one step closer to understanding what happens when you shoot a marble into another! Read more
Color Mixing and Family Physics
Blog Post
Put on a colorful nighttime light show with this family STEM experiment! With inexpensive flashlights and colored cellophane papers, kids can experiment with additive color mixing. The results might surprise you! Mixing Colors From the time they are little, most kids learn about color mixing. In craft and art projects using colorful crayons, markers, and paint, kids are encouraged to explore how primary colors can be combined to make secondary and tertiary colors. In this week's… Read more
Color Mixing with Red, Green, & Blue LEDs
Science Fair Project Idea
Scientific Method
This is a good project for someone who is interested in both electronics and color vision. The equipment needed is on the expensive side, but if you continue studying electronics, you can use it again and again. Read more
Color Saturation
Science Fair Project Idea
Scientific Method
Lively, vivid colors can add pizzazz and turn a dull photo into a work of art. Learn how changing the saturation levels of the colors in your photo can really make it pop! Read more
Colorful Candy Science
Blog Post
Too much candy after Halloween? Put some of your trick-or-treat candy to scientific use with a hands-on project. This crowd-pleasing STEM activity turns colorful candies into a visual treat for students and a lesson in molecular diffusion. Candy Science: Just Add Water! Hands-on K-12 STEM. www.sciencebuddies.org Simple Candy STEM All you need to do this science activity is colorful candies, a small bowl (or plate), and water. Line the candies up in a… Read more
Colorful Family Science for St. Patrick's Day
Blog Post
What causes the food coloring to move through the milk? In this week's spotlight: a family science experiment that lets you and your children make a rainbow in keeping with St. Patrick's Day! What happens when you put drops of food coloring in milk? What happens when you add a bit of dishwashing liquid? Put it to the test in this science activity for a fun, colorful look at the role of a surfactant and how it changes the surface tension of a liquid. Family science… Read more
Colorful Walking Water Science Activity
Blog Post
This simple STEM activity turns capillary action and "siphoning" into an exciting rainbow-colored demonstration! Try this colorful "Walking Water" science activity How can you move water from one cup to another without pouring it? A simple hands-on experiment with a series of clear cups and paper towels lets students explore this question. When they see water move up and then down the paper towels, there will be plenty of opportunity for… Read more
Compare Circumference and Diameter with String
Blog Post
Things that are circular in shape surround us. From quarters to wheels to the openings of cups and bottles, circles are abundant, and they come in all sizes. In this week's family science activity, students explore properties of a circle, just like mathematicians do, to see if they can identify the relationship between the diameter of a circle and the circumference. This hands-on math activity turns these measurements (and the concept of Pi) into something that can be visualized with… Read more
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