In short, they're liquid fuels made from renewable resources. ‘Bio’ is a prefix that makes a lot of stuff very cool: biosphere, bionic (anything), biodiversity. By the dictionary definition, it means ‘life’ derived from Greek. Biofuels by this definition are fuels derived from org...
Some climate experts predict that the polar ice caps will recede by 40 percent by 2050. As the ice melts, it creates a feedback effect. Essentially, sunlight that would have been reflected by the ice is now absorbed by the oceans, accelerating the warming process exponentially. As temperatures...
If we think of melting Ice, this happens at zero Celsius. Once Ice is brought to zero, it starts to melt. However, freezing is different. Pure water can quickly cool considerably to below zero Celsius and remain liquid. This is known as supercooled water. The reason is that water molecule...
This hydrogen bond is the reason behind many of water's special properties, such as the fact that it's denser in its liquid state than in its solid state (ice floats on water). We'll look closer at these special properties later. Water is the only substance that occurs naturally as a...
released and absorbed as water changes phase, for example between ice and liquid water. You experience the power of latent heat on a sweaty summer day. As the sweat on your skin evaporates, it absorbs heat in the transition from liquid water to water vapor, cooling you off in the process...
This hydrogen bond is the reason behind many of water's special properties, such as the fact that it's denser in its liquid state than in its solid state (ice floats on water). We'll look closer at these special properties later. Water is the only substance that occurs naturally as a...
There are a hundred and one ways to remove sticker residue from things, and WD-40 is one of them! Remove as much of the sticker as you can, then coat the remaining sticker residue in a layer of WD-40. Wait a few minutes to allow the liquid to penetrate into the adhesive, then use...
How can you go faster down a slide? Which kitchen towel absorbs the most liquid? Which shaped ice cube melts the fastest? For each investigation consider what variable will change and which variables need to remain the same to make it a fair test. Think about what you are measuring. What...
1c) Continuous Liquid Interface Production (CLIP):It is similar to stereolithography but continuous and up to 100 times faster. CLIP can produce rubbery and flexible objects with smooth sides, that couldn’t be created with other techniques. ...
Why does ice melt faster in water? What happens when you mix sugar and water? Why does temperature remain constant for melting ice? Why is the melting of ice not a chemical reaction? Why does ice float in liquid water? How does the movement of water molecules change? How can climate cha...