A food Calorie represents the amount of energy that will raise the temperature of one kilogram of water one degree Celsius.
Did you know that the Arctic is warming faster than the rest of the planet?
Does it matter whether your calories come from solid food or liquid? A calorie is a calorie right?
Supernovas explode with a bright burst of radiation, giving off as much energy in a few days as our sun will give off in its entire lifetime.
Ocean waves pack so much power, in fact, that if we were able to harness all that wave energy, we'd have more than enough power to get rid of fossil fuels.
Flowers broadcast their hidden treasure with bright colors, sweet scents and beautiful markings. However, flowers' markings are more than cosmetic...
Have you ever wondered why birds aren't electrocuted by the currents that flow through high-voltage power lines?
All the refrigerator does is move heat, or energy, from one place to another. As the food inside the refrigerator loses its heat and gets colder.
Renewable energy sources are cleaner and more environmentally friendly than fossil fuels. But you can't store wind or sun like you can oil or coal. Or can you?
We need cleaner, more sustainable sources of energy, right?