Second Grade Projects, Lessons, Activities (Page 23)

Explore How Lung Infection Influences Breathing

STEM Activity

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21 reviews

Have you ever coughed, felt short of breath because you were sick, or felt it was hard work to take a breath? Maybe you have watched someone gasping for air. At times, these events can feel scary! This activity explores how mucus and fluid in the lungs or airways changes our breathing using a simple lung model. It can help you understand why symptoms like coughing and being short of breath happen. Read more

Fantastic Fossilization! Discover the Conditions For Creating the Best Cast Fossils

Science Fair Project Idea

Scientific Method

Have you ever stood close to a fossilized T. rex skull and counted its razor-sharp teeth? Or, have you seen a fossilized stegosaurus skeleton and thought about how it defended itself with tail spikes and armored plates? A trip to a natural history museum lets you imagine what dinosaurs looked like and wonder what life with them on Earth was like. Fossils give us information about animals and plants that lived long ago. Certain places around the world contain more fossils than others. Why?… Read more

Fruits Gone Bad? Discover Enzymatic Browning

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Have you ever wondered why apple slices turn brown once you cut them or why a yellow banana gets dark spots over time? Both of these phenomena have the same cause: enzymatic browning triggered by an enzyme called polyphenol oxidase (PPO). In this activity you will find out how this enzyme works by turning a banana from yellow to brown in just a matter of seconds. Then you will explore how you can keep your apple slices looking fresh! Read more

Gelatin Pearls

STEM Activity

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Do you enjoy getting creative in the kitchen? If so, this activity is for you! Molecular cuisine—taking tools, ingredients, and methods typically used in science and using them in cooking—might sound fancy and complicated, but some techniques are easy to replicate! Get your hands wet, fire up your creativity, and see how rewarding it can be! Read more

How Far Can Your Sneeze Go?

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Do you cover your coughs and sneezes? How far do you think the droplets can travel if you do not cover them? Why is this important to help prevent the spread of diseases like COVID-19? Try this activity to find out! Read more

How Many Seeds Do Different Types of Fruit Produce?

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

How Sailboats Stay Upright

Science Fair Project Idea

Scientific Method

Have you ever seen a tall sailboat and wondered how they don't flip over when it's windy? Try this project and learn about the physics behind how sailboats stay upright. Read more

How to Design a Great Cat Toy

Science Fair Project Idea

Scientific Method

Do you love animals and want to help keep them healthy? Well, here's your chance to design and tailor a toy that will bring out your pet's most playful nature. In this science fair project, you'll evaluate the skills and activities of your pet and determine what kinds of toys most excite your pet and make him or her lively and curious. So call your furry or feathered friend, and let the frolicking begin! Read more

Is That Really Bacteria Living in My Yogurt?

Science Fair Project Idea

Scientific Method

Have you ever noticed that most yogurt containers say they contain "live cultures"? What does that mean? The label is suggesting that the yogurt has living bacteria in it! While some types of bacteria can make you sick, some are actually important to keep you healthy. But individual bacteria are so tiny that you cannot see one with the naked eye, so how can you tell if bacteria are really living in your yogurt? In this science fair project, you will investigate whether yogurt actually… Read more

Making Mixtures: How Do Colloids Size Up?

Science Fair Project Idea

Scientific Method

Have you ever wondered why some things disappear when they are put in water but other things do not? For example, you may have seen that salt disappears, or dissolves, when it is mixed in a glass of water. But when you throw a rock in a stream it will not usually dissolve, and instead it will just sink to the bottom. And then there are some things that do not act like the salt or the rock. These are called colloids. If you have made Oobleck out of cornstarch and water, then you have seen… Read more

Second Grade Projects, Lessons, Activities (460 results)

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