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Second Grade Science Projects (243 results)

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Science Fair Project Idea
Scientific Method
Have you ever wondered what a wildlife biologist does? Ronnie and Denise from DragonflyTV found out firsthand when they worked with a local wildlife biologist to take a survey of the fish populations in their local lake. They wanted to determine what the biodiversity (number of different species in a habitat) was like so that they could find out how healthy the lake habitat was. In this science fair project you can take on the role of a wildlife biologist by examining the biodiversity of… Read more
Science Fair Project Idea
Scientific Method
Doctors use many complicated tools to check the health of patients. But you can make some medical tools at home—like a stethoscope! A doctor uses a stethoscope to listen to a patient's heart. In this science project, you will make three of your own homemade stethoscopes and figure out which stethoscope design works best and why. Read more
Science Fair Project Idea
Scientific Method
Have you ever thought about being stranded on a desert island? How would you find water to drink? What would you need to survive? In this science fair project you'll discover how to turn the ocean into a source of freshwater by using the power of the Sun. Read more
Science Fair Project Idea
Scientific Method
No matter what your favorite card game is, we all wish we could use psychic powers to draw the card we want on our turn. You may not have psychic powers, but you might have the power of probability on your side. In this science project, you will discover how math can help you avoid the words, "Go fish!" Read more
Science Fair Project Idea
Scientific Method
Why is your grandmother always wondering if you are drinking enough milk? Our bones are made out of calcium, a mineral found in milk, and drinking milk can lead to strong healthy bones. What about other animals? What are their bones made of? What kind of bones do they have? Are there animals without bones? Are endoskeletons and exoskeletons made out of the same materials? Read more
Science Fair Project Idea
Scientific Method
Did you know that the world record for the greatest number of jumps in a minute is more than 340? That's more than five jumps a second! How close do you think you can get to that number? If you are going to try to break the record, it might be important to figure out how jump rope length affects your success. Try your hand at this skipping science fair project and jump-start your chances for a jump rope record. If you have a smartphone available, you can use its accelerometer and a sensor app… Read more
Science Fair Project Idea
Scientific Method
Did you know that you can lift an object that's heavier than you are? Just use a lever! In this science project you'll build a tabletop lever and measure how much effort it takes to lift an object using it. Read more
Science Fair Project Idea
Scientific Method
Practice makes you better at most things, and knowledge makes practice so much easier! Can you swirl a circular toy called a hula hoop around your waist or arm? Is it hard? What knowledge can you apply to find ways that make hula-hooping easier? Physics! Yes, physics will help you determine what makes one hula hoop a winner and another a flop. In this project, you will create your own hula hoops, spin them, and draw conclusions. The road will then be open to your becoming a hula hoop expert. If… Read more
Science Fair Project Idea
Scientific Method
In this fun science project, you will create a bird feeder from recycled materials that you can set up outside. By observing the birds that come to the bird feeder, you will find out what different kinds of birds live in your area. How many different kinds of birds do you think you will spot? Read more
Science Fair Project Idea
Scientific Method
Do you like your strawberry jelly with or without the seeds? Are you glad to have a seed-free watermelon, or do you enjoy spitting the seeds into the garden? You might not like to find seeds in your fruit, but fruit is the plant's way of dispersing seeds to make new plants. How many seeds can be dispersed for each type of fruit? As they say, in one end and out the other! Read more
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Free science fair projects.