Chemistry
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ChemistryRock Candy Science 2: No such thing as too much sugar
Making rock candy at home takes a lot more sugar than you might think. Why? This experiment will show you why.
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ChemistryBatteries should not burst into flames
Because lithium-ion batteries power modern life, they need to store a lot of energy. Now scientists are focusing on making them safer.
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ChemistryLet’s learn about the periodic table
This iconic chart holds information about all the known elements. As more are discovered, the table expands.
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LifeScientists Say: Enzyme
This word describes a molecule that speeds up chemical reactions in living things. Enzymes work by lowering the energy needed for a reaction to occur.
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ChemistryConverting trash to valuable graphene in a flash
Flash heating of carbon-rich wastes creates graphene, which has many commercial uses.
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LifeScientists Say: Fermentation
Fermentation breaks down carbohydrates, such as sugars, producing energy and making gases, acids or alcohol. This process can help make foods and fuels.
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ChemistryExplainer: What the pH scale tells us
The pH scale tells us how basic or acidic something is. Pure water sits in the middle of the scale, at a pH of seven.
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Health & MedicineNew spray gel moves drugs deep to treat frostbite
New gel spray sends healing ingredients deep into frostbite injuries to promote healing.
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EarthHelp for a world drowning in microplastics
Microplastic pollution in our oceans and lakes is a problem. Scientists are testing solutions — from more biodegradable recipes to nanotechnology.
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PhysicsLike Magneto? Microcrystals give magnets superpower over living cells
New iron-rich protein crystals could help researchers better understand the nerve cells that control movement and sensation. All they need are magnets.
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PlantsScientists look to hack photosynthesis for a ‘greener’ planet
Photosynthesis turns sunlight into energy for plants. Scientists want to know more about it, imitate it — even improve it.
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ChemistryChemistry’s ever-useful periodic table celebrates a big birthday
2019 is the International Year of the Periodic Table. But the traditional chart is just one of many shapes that chemists and other scientists have developed to organize the elements.