Eighth Grade Science Experiments (Page 192)

Science Fair Project Idea

Scientific Method

Did you know that commercial airline pilots use high-tech flight simulators to learn how to fly big jumbo jets? Before they ever step behind the controls of a real jet they've already logged thousands of virtual air miles. It might not qualify you to fly a real jumbo jet, but you, too, can learn the logistics of aviation by experimenting with the types of flight simulators sold at computer game retailers. Use a flight simulator to investigate the relationship between flap settings and the stall… Read more

Floating Eggs: Weekly Science Project Idea and Home Science Activity Spotlight

Blog Post

In this week's spotlight: an ocean sciences family experiment and science fair project. Some things float in water and some do not. Knowing the density of the object and the density of the water helps explain what is going on, and you can observe and talk about the buoyancy of an object. But adding salt can change what happens. Why? In this hands-on science experiment, you set up a series of dilutions to see at what point an egg goes from sinking to floating in salt water. How Salty… Read more

Focusing Your Flash for 'Freezing' Motion

Science Fair Project Idea

Scientific Method

Here's an interesting flash photography project. With an inexpensive Fresnel lens, you can concentrate the light from your flash. You'll be able to shoot with a smaller aperture and a shorter flash duration. This will give you greater depth of focus and will allow you to 'freeze' motion at higher speeds. The trade-off is that the light will be concentrated toward the center of the frame. This project shows you how you can investigate that trade-off and find out how you can best use your flash… Read more

Fractals

Science Fair Project Idea

Scientific Method

A fractal is, "a rough or fragmented geometric shape that can be subdivided in parts, each of which is (at least approximately) a reduced/size copy of the whole" (Mandelbrot, 1982). There are many different fractal patterns, each with unique properties and typically named after the mathematician who discovered it. A fractal increases in complexity as it is generated through repeated sets of numbers called iterations. There are many interesting projects exploring fractal geometry that go beyond… Read more

Free Lunch? Can Solar Energy Systems Pay for Themselves with Utility Bill Savings?

Science Fair Project Idea

Scientific Method

If you are interested in exploring how renewable energy can improve the environment, this project could be for you. You'll take on a real-life engineering challenge: deciding whether the benefits of a renewable energy technology are worth the cost to implement it. Some sample questions are suggested, but you can also come up with your own question that matches your specific renewable energy interest. Is there such thing as a free lunch? Read more

Free STEM Activities for Classroom, Remote, Hybrid, Pod Learning!

Blog Post

Looking for science activities to engage students with STEM? Remote learning? Hybrid? Considering a learning pod? We have more than 200 free, hands-on science and engineering activities perfect for home, the classroom, and anywhere in between! Science Buddies has more than 200 free science and engineering activities to help explore STEM with kids. Whether you will be teaching remotely, in the classroom, in a hybrid system, or as part of a learning pod,… Read more

Freeze Your Fruit With Science!

STEM Activity

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Pop Science Quiz: What happens to water when it reaches 0°C (32°F)? Answer: It freezes! But does water always freeze when it reaches 0°C (32°F)? Believe it or not, water can sometimes be cooled to temperatures below its freezing point and still remain liquid. In this state the water is supercool. How can this happen? In this activity you will create your own supercool water, and initiate its transition from liquid to solid. All while making a tasty snack! Read more

Frequency Histograms

Science Fair Project Idea

Scientific Method

Can you remember what the weather was like last week? Last year? Here's a project that looks at what the weather was like for over a hundred years. You'll use historical climate data to look at moisture conditions in regions across the continental U.S. You'll use a spreadsheet program to calculate the frequency of different moisture conditions for each region and make graphs for comparison. Which part of the country has the most frequent droughts? The most frequent periods of prolonged… Read more

Frequency of Outcomes in a Small Number of Trials

Science Fair Project Idea

Scientific Method

People often draw conclusions from a small number of observations, and use those conclusions to evaluate the likelihood that an event will take place. But how easy is it to draw the wrong conclusion based on those observations? Will your predictions be accurate if an experiment is only performed a few times? The objective of this project is to determine what happens when a test with two equally-likely outcomes is performed only a small number of times. You can test this by flipping a coin. A… Read more

From Your John to the School Lawn: Is Recycled Water Really Safe?

Science Fair Project Idea

Scientific Method

Reclaimed (treated) wastewater can be used for many purposes, including landscape watering and freeing up valuable fresh water for other purposes (like drinking water). It's a great way to conserve water, but is it really safe? This science fair project is designed to find out. Read more

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