High School Science Experiments (Page 117)

Popsicle Trusses

Blog Post

Does the shape beams make when they come together make a difference in their strength? Beams in civil engineering have an important role to play in ensuring a building or bridge stands up, supports the weight it should, and doesn't bend or collapse under normal use. In this week's family science project, students and families use popsicle sticks and binder clips to investigate the relationship between the shape of trusses in a building and their strength. Popsicle Stick Trusses:… Read more

Powering a Raft with Surface Tension: Weekly Science Activity

Blog Post

In this week's spotlight: a physics family science experiment that investigates the dynamics of surface tension. Surface tension may keep your soda from spilling over the cup when you fill it a bit too full, but can surface tension also be used to propel something? In this science activity, students build a small, lightweight raft and experiment to see how surface tension—and some dish soap—can help move it across the surface of water. Build a Bathtub Toy Raft Powered by… Read more

Pretty Packaging: Can Attractive Packaging Lead to Healthier Eating?

Science Fair Project Idea

Scientific Method

Have you ever bought or tried something new, just because of the way it looked, or the nice box that it came in? On your birthday, which present do you pick to open first? The one that looks big and colorful and exciting or the one that is wrapped in old tissue paper? The way that something is packaged and wrapped often advertises what is inside. But can attractive, exciting packaging convince you to try something that might not be very exciting, but is, perhaps, something that is good for you?… Read more

Program a Maze with Paper

STEM Activity

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You probably use computer programs every day. Every time you use the internet, play a video game, or us a smartphone, you are using computer programs. Do you want to learn a little bit about computer programming, without the need to actually use a computer? In this fun activity, you will write a “program” – a set directions for a volunteer to find their way through a maze. Can you help them find their way through without crashing? Read more

Protein Structure and Function

Science Fair Project Idea

Scientific Method

How a biological system functions is a consequence of the 3-D structures of biological macromolecules like proteins and protein complexes. Proteins can be categorized into different protein families based upon sequence, structure, and function. Typically, proteins in the same family have similar biochemical functions. You can investigate the structure of a protein by using protein databases (Entrez Protein, SwissProt, PDB) and 3-D computational models. You can compare the structures of… Read more

Puppy Science: Weekly Science Project Idea and Home Science Activity Spotlight

Blog Post

In this week's spotlight: a mammalian biology project and family activity that encourages families to talk about and explore why puppies and other animals huddle together for warmth. Does cuddling up really increase warmth? Put it to the test in this hands-on science experiment! Huddle & Cuddle: How Puppies Keep Warm (full Science Buddies Project Idea) Snuggly Science: How Puppies Keep Warm (science activity at Scientific American) Read more

Racing Marbles to Measure Viscosity

Blog Post

Have you ever noticed that some liquids are more difficult than others to squeeze from a container? Honey is a great example. Depending on its temperature, it may be especially slow to flow from the bottle. (If you warm it up, it may flow more quickly!) While it may seem like the quality of the honey you are noticing is its "thickness" or "thinness," another way to talk about what you are seeing is to talk about its viscosity. In this week's chemistry-themed family science… Read more

Radiant Radish Seeds

Science Fair Project Idea

Scientific Method

We all know that plants need sunlight and water to grow big and tall. But did you know that inside seeds are baby plants, and that the fragile baby plant inside the seed needs to be protected? If you've ever had a sunburn, you also know that the sun gives off harmful radiation and heat. How much radiation and heat can a seed handle? Find out using some radish seeds, an oven, and your microwave! Read more

Rocket Science: Weekly Science Project Idea/Home Science Activity Spotlight

Blog Post

In this week's spotlight: a pair of projects that fit right in with U.S. 4th of July celebrations and let you get hands-on with "rocket" science at any time of the year. What happens when you combine vinegar and baking soda? A chemical reaction! If you contain the reaction in a small space like a film canister, you can get a high-flying blast from the combination—your own mini rocket. But how much of each ingredient do you need? Experiment with the ratio of vinegar and baking soda… Read more

Rolling Race

STEM Activity

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Imagine rolling two identical cans down a slope, but one can is empty and one is full. Which one will reach the bottom first? You might have learned that when dropped straight down, all objects fall at the same rate regardless of how heavy they are (neglecting air resistance). Is the same true for objects rolling down a hill? Try this experiment to find out! Read more

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