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Water Salinity

Hipervinculo Química

Water Salinity

Do you think water from your faucet freezes the same as water from the ocean? While you probably know that all water is made up of hydrogen and oxygen molecules, water from the ocean also has an extra ...

DIY Compost: Aerobic and Anaerobic Decomposition

What is the best way to make DIY compost? Can you help your compost turn into soil more quickly?Does adding air to a compost bin helpfruit and vegetable scraps turn into compost more quickly?It is an ...

Forest Food Pyramid Project

In this activity, you’ll create a food pyramid that shows whateats what in the forest. First, you’ll do some research on the plants and animals that live in your area to discover what food pyramids ar ...

Dirty Air

When we look around, we do not typically see ‘air’ so it is easy to assume that our air is clean. In reality, our atmosphere is made up of mostly invisible gases. Additionally, most air pollutants are ...

Complete Circuit: How Does a Flashlight Work?

Electricity makes our lives easier by powering our lights, refrigerators, and even some cars! Electricity can travel around in systems called circuits, which carry current—a stream of flowing electron ...

What Is a Compound Microscope?

Optics is a branch of physics that studies the interactions of light with objects. Microscopes, cameras and other transparent “looking devices” use lenses to change the way we see objects. Using magni ...

Factors Affecting Solubility

One fun way to start learning about solutions is to open your refrigerator. Do you have any orange juice? Pour yourself a small glass. Do you have any soda or iced tea? Pour another small glass. Look ...

Which Cup Best Prevents Ice from Melting?

The type of cup that you choose can greatly affect the life of your ice. Understanding how different act as insulators can help you make educated decisions in your choice of cups or coolers for trans ...

Pineapple Enzyme

Many people love gelatin-based desserts. Many of us love pineapples too. Should you put them together? As many a gelatin-loving cook has discovered, certain fruits can change gelatin’s ability to set. ...

Why Does Honey Crystallize?

Has your sweet treat turned tough all of a sudden? If you’ve ever struggled to get honey out of a jar, you’ll know that this treat is sometimes a liquid and sometimes a solid. In this experiment, you’ ...

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