Third Grade Science Experiments (Page 104)

Hula Hoop Science: Weekly Science Project Idea and Home Science Activity Spotlight

Blog Post

In this week's spotlight: a pair of science projects perfect for burning off some energy and getting your "spin" on. What is the secret to a good hula hoop? Experiment with the weight and size of different homemade hoops to see how each affects your ability to keep a hoop in motion. What's the best combination? Can you hula hoop longer with a lighter or heavier hoop? Why? Motion Mania: Applying Physics to Hula-Hooping (full Science Buddies Project Idea) Swiveling Science: Applying… Read more

Hula Hooping with a Rubber Band

STEM Activity

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Are you any good at hula hooping? If not, there is good news: you can do this fun project without any hula hooping experience! You will examine some of the fascinating physics behind hula hooping using just a pencil and a rubber band. Read more

Human Perception of the Anomalous Mirror Symmetry Illusion

Science Fair Project Idea

Scientific Method

The Science Buddies project Design Your Own 3D Printed Optical Illusion shows you how to make your own 3D printed "anomalous mirror symmetry" illusions (Figure 1). The illusions are based on the work of Dr. Kokichi Sugihara. You can read his original paper about the illusions in the Bibliography. Figure 1. Two versions of the "impossible arrow" shape that appears to point to the right while its reflection in the mirror appears to point to the left. Which version of… Read more

Ice Cream Science: Weekly Science Project Idea and Home Science Activity Spotlight

Blog Post

In this week's spotlight: a food science family science experiment and independent student science fair project that takes a deeper look at the chilly process of making ice cream. You can make your own ice cream using one of a variety of shaking or rolling processes, including using a baggy to hold the ingredients! How does adding salt to the ice mixture used to freeze the ingredients affect the process? Make your own ice cream to find out! Chemistry of Ice-Cream Making: Lowering the… Read more

Imagine Your Story - STEM Activities for Storytellers of All Ages!

Blog Post

Are you getting ready for a summer of reading with kids? Make things even more creative and fun this summer with free, hands-on science and engineering activities that help students bring their stories to life. Pair Summer Reading with Storytelling Fun! Library reading programs are a hallmark of summer break! Checking off "books read" on a colorful map, a multi-part bookworm, or some other engaging book log as part of your library's summer reading… Read more

Improving Focus for People with Neurodevelopmental Disorders

Science Fair Project Idea

Scientific Method

Have you ever wondered how you could help yourself or your classmates focus or perform better in class? Many students do! Some kids diagnosed with a neurodevelopmental disorder learn better in different ways, and easy changes while performing a task can make a huge difference to them. In this science project, you'll test if standing can significantly improve your performance and if this further improves performance for those who have neurodevelopmental disorders. Read more

Incorporating Physics in Video Games

Science Fair Project Idea

Engineering Design Process

Have you ever played a video game and gotten so involved that you felt as if you were living inside the game? What were the characteristics of the game that made you feel part of the action? One component of an absorbing video game is an onscreen world that makes sense—a world that takes physics into account. A game in which the player feels the effect of trudging through mud, slipping on ice, or catapulting a bird is more fun than one with no environmental interaction. In this science… Read more

Invasive Species

Science Fair Project Idea

Scientific Method

Invasive species are organisms (either plant or animal) that have been introduced into a new, non-native area and spread rapidly in the new environment due to a lack of regulation by predators. Frequently, invasive species will out-compete native species for resources which can put native species at risk. This is an especially big problem for threatened habitat and endangered species, which are already at risk. Survey your area to document cases of invasive species invading a local… Read more

Investigate the 'Death' of an Orange: How is Rate of Heat Loss Based on the Surrounding Temperature?

Science Fair Project Idea

Scientific Method

Imagine that you are a detective investigating a murder. You have a body that was found in a swimming pool, and someone reported hearing an argument near the pool at 10:00 PM the night before. Your first question might be "Was this person killed around 10:00 PM last night, or at some other time?" One way to answer this question is to measure the internal temperature of the body. The longer ago the killing occurred, the colder the body. But can you assign a specific time of death to a specific… Read more

Investigate the Vitamin C Level in Bell Peppers During Various Stages of Ripeness

Science Fair Project Idea

Scientific Method

Vitamin C is a water-soluble vitamin that has many functions in the body. Vitamin C is needed to bolster the immune system. It is an antioxidant that protects LDL cholesterol from oxidative damage, and it is needed to make collagen, a substance that strengthens many parts of the body, such as muscles and blood vessels. Our bodies do not make vitamin C, so we must get it from dietary sources. Citrus fruits, carrots, avocados, and spinach all have vitamin C. Bell peppers, like the ones shown in… Read more

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