Sixth Grade Science Experiments (Page 129)

Strong Wind Science: The Power of a Pinwheel

STEM Activity

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Have you ever ridden your bike into a strong wind? If so, did your legs feel like lead? How does this compare to how you feel when the wind is pushing against your back – does that make you feel ready for the Tour de France? In this science activity, you will explore how wind-powered devices, like wind turbines and pinwheels, also react in different ways to the direction of the wind. Read more

Study Chirality with a Homemade Polarimeter

Science Fair Project Idea

Scientific Method

Some molecules can be either left- or right-"handed." The left- and right-handed molecules have the same number and type of atoms, and their chemical structures look identical, but they are actually mirror images of each other. Many naturally occurring molecules have this property, called chirality. Chiral molecules can interact with polarized light in an interesting way—they rotate the plane of polarization. This chemistry science fair project describes how to make a homemade polarimeter… Read more

Study the Effect of Fertilizers on Algal Growth

Science Fair Project Idea

Scientific Method

You might not know it, but a lake without algae would be a very dull place. If there were no algae, there would be no small animals feeding on the algae, and there wouldn't be any fish eating the small animals that eat the algae. You might conclude that since some algae is good, more algae is even better, but algae growth has a down side. If there is too much algae, they can deplete the oxygen in the water, killing off other species in the water. What is one culprit that leads to algal growth?… Read more

Sunspot Cycles

Science Fair Project Idea

Scientific Method

Sunspot activity has been monitored continuously since about 1700. The historical data shows that sunspot activity rises and falls in a roughly 11-year cycle. This project shows you how you can use both graphical and statistical analysis to look for patterns in cyclical data. Read more

Super-Strong Science: Explore Nanotechnology Using Paper

STEM Activity

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Have you ever seen a superhero movie where the superhero relies on a super-strong material, like Wolverine's adamantium claws, Captain American's vibranium shield, or Iron Man's suit of armor? While scientists and engineers in comic books work on creating fictional materials to help superheroes win the day, real-world scientists and engineers are actually working on super-strong materials that could have a variety of uses, from improved bulletproof vests, to stronger ropes, lighter bikes and… Read more

Sustainable Construction: Building with Mushroom Roots

Science Fair Project Idea

Scientific Method

Does growing your own house sound futuristic? If so, this project might surprise you! An overlap of biology, material science, and environmental science has resulted in some intriguing self-assembling materials. In this project, you will grow one of these materials: mycelium composite. It is made of agricultural waste and mushroom roots. You will explore two ways to grow your own construction material. Try it out and see which method proves to be the strongest! Read more

Sweaty Science: How Does Heart Rate Change with Exercise?

STEM Activity

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Have you ever wondered how many times your heart beats in a year, or will beat throughout your life? Over an average lifetime, the human heart beats more than 2.5 billion times. For a person to keep their heart healthy, they should eat right, not smoke, and get regular exercise. In this science activity, you’ll measure your heart rate during different types of physical activities to find out which give your heart the best workout to help keep it fit. Read more

Tail Wagging and Brain Lateralization

Science Fair Project Idea

Scientific Method

You have probably heard about left-brain and right-brain differences in people. The left brain is supposed to be better at language, and organizing sequential actions, the right brain is supposed to be better at visualizing orientations in space, making and listening to music, and deciphering the emotions of others. Is there evidence for left/right brain specialization in other animals? This project examines tail-wagging in dogs. Does tail-wagging show any evidence of left/right brain… Read more

Talk About a Bad Hair Day!

Science Fair Project Idea

Scientific Method

Did you know that you can make a simple hygrometer (a device for measuring the relative humidity of the air) with hair? Search online for instructions to build one. Does the type of hair used in the hygrometer affect the accuracy of the results? Do some types of hair respond faster than others? Do some types of hair give a larger (or smaller) response? You could get hair samples from classmates, or a local beauty shop. Use hair samples of equal length to construct each hygrometer. To force… Read more

Taming the Tsunami: Investigating Different Structures to Reduce Tsunami Damage

Science Fair Project Idea

Scientific Method

On December 26, 2004, a magnitude 9.2 megathrust earthquake off the west coast of Sumatra, Indonesia unleashed a powerful tsunami that hit the coasts of 14 countries and caused the loss of over 200,000 lives. The devastation that the tsunami left in its wake was heartbreaking, and people across the world united to help the survivors. Tsunamis are a powerful force of nature that can change the features of a coastline and result in millions of dollars in economic loss, but can… Read more

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