High School Science Experiments (Page 112)

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Did you know that you can use a smartphone as a scientific instrument to explore the world around you? Smartphones contain many built-in electronic sensors that can measure phenomena such as sound, light, motion and more! In this activity, you’ll use your phone’s light sensor to examine the brightness of light from different light sources and locations. How bright is the reading lamp in your living room compared to direct sunlight? Try this activity to find out! Read more

Scrumptious Science: Great Globs of Gluten!

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Do you have a favorite Thanksgiving dinner dish? Maybe it’s an aunt’s special cranberry sauce, or mashed potatoes combined with perfectly-seasoned gravy. Or perhaps you enjoy sinking your teeth into a succulent roasted turkey the most. Dinner rolls, biscuits, corn breads, muffins, pastries and pies may also be baked for this special meal; the foods in this group typically all contain a substance called gluten. In this science activity, you’ll explore why some foods, all made… Read more

SeaPerch: An Underwater Robot

Science Fair Project Idea

Engineering Design Process

Underwater robots, or remotely operated vehicles (ROVs), help us explore areas of the ocean that can be dangerous for humans. They can provide valuable scientific information about deep-sea life and ocean climate. However, you do not need access to the ocean to build and test your own ROV. If you have ever wanted to build your own ROV but were not sure where to start, the SeaPerch platform is a great option. You can purchase a complete kit with all the required parts and follow the detailed… Read more

Seasonal Science: The Reasons for the Seasons

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Have you ever lived someplace where you get to experience the full glory of all four seasons? If so, you know well the heady blossoms and dramatic skies of spring; the long, sun-drenched days of summer; the trees shaking in crimson and gold in fall; and the sparkling, brittle snows of winter. But do you know why we have these seasons, over and over again, in a cycle as predictable as the rising and setting of the sun? It actually has to do with the Earth’s tilt and the Moon. In this… Read more

See Air Currents with Shadowgraphs and Schlieren Images

Science Fair Project Idea

Engineering Design Process

Have you ever wondered what the air currents look like around a candle? What about cold air flowing around an ice cube, or warm air rising from your hand? What about when you sneeze? We are surrounded by air currents all the time, but these subtle movements are completely invisible to the human eye. In this science project, you will take advantage of small changes in air density to make air currents visible in regular photographs and videos, using techniques called shadowgraphy and schlieren… Read more

Seebeck Effect: Turn Heat into Electricity, Then Measure It with a Thermocouple Thermometer

Science Fair Project Idea

Scientific Method

Everyone knows electricity can create heat, especially because our electrical appliances tend to warm up when turned on. But wouldn't it be cool to do the reverse — generate electricity from heat? In this science project, you will study why it happens, measure the effect, and then use the phenomenon to build your own device, a thermocouple thermometer, that will enable you to convert heat into electrical energy. Read more

Seeing in the Dark

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Have you ever considered taking a nighttime nature walk? Would you wait until there is a full moon, so you could profit from sunlight reflected on the moon, or would you rather take a flashlight? Do you think trees would look black, green, or grey in the dark? Do this activity to examine your night vision and prepare for your next nighttime adventure! Read more

Seeing Pedigree Science: Making a Family Tree of Traits

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Has anyone ever told you that you look just like one of your parents or grandparents? Some characteristics, like the shape of your hairline or whether your earlobes are attached or detached, are inherited. In this activity you’ll get to see how writing some characteristics onto a family tree can help you determine just how you inherited them. You will likely discover some characteristics that you got from your father, and for this Father’s Day you can thank your… Read more

Seeing Science: Exploring Perception with the Stroop Effect

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Have you ever tried to pat your head with one hand while you rub your stomach with the other? This science activity is kind of like doing that, but it can actually give you some insight into how your mind works. The challenge of this activity is to name colors. It sounds simple enough, right? If you think it does, you should see what happens when words of colors get in the way! This is a fun activity to try out with family and/or friends while spending time together over the holidays. Read more

Sensory Science: Testing Taste Thresholds

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During the holidays, we often find ourselves surrounded by a wide variety of taste sensations. Have you ever wondered how well we sense different tastes? People are generally able to discern five basic tastes: sweet, umami (also known as savory), salty, sour and bitter. Is it easier to detect some of these flavors at low concentrations compared to others? In this science activity, you (and possibly your friends and/or family) will find out by exploring your taste thresholds for sweetness,… Read more

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