When Were Pennies Made Of Copper
The Penny That Wasnt Always a Penny When Copper Coins Hit Your Pocket You might think the penny has always been that dull greenish coin in your wallet But heres the twist for over 130 years the penny was made of copper And then almost overnight it wasn t So when were pennies made of copper The answe
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Can You Mix Bleach And Borax
You re staring at a stained white shirt Bleach in one hand borax in the other A little voice in your head says wait is this one of those combinations that kills people Good instinct Most of us have heard the horror stories bleach plus ammonia equals chloramine gas Bleach plus vinegar equals chlorine
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Colored Periodic Table Of Elements With Key
The Colored Periodic Table of Elements Why Colors Make Chemistry Click Ever stared at the periodic table and felt like you were looking at a jumble of letters and numbers You re not alone For decades students and curious minds have squinted at those tiny boxes trying to remember which element does w
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How Much Does A Gallon Of Sand Weigh
how much does a gallon of sand weigh You ve probably seen a sandbox at the park a bag of sand for a DIY project or maybe a truck hauling a load of it The question pops up without warning how much does a gallon of sand weigh It sounds simple but the answer depends on a few things you might not have t
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Is The Red Juice On A Steak Blood
That red liquid pooling on your plate Its not blood I ve seen people push a perfectly good steak away because of it Heard the I like mine well done none of that bloody stuff line more times than I can count And honestly Its one of the most persistent food myths out there Lets clear it up right now W
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Is Hydrogen A Metal Or A Non Metal
Is Hydrogen a Metal or a Non Metal The Truth Might Surprise You Hydrogen is the universes most abundant element making up roughly 75 of its mass but heres the twist its not a metal Despite sitting in Group 1 of the periodic table where you d expect to find metals like lithium and sodium hydrogen beh
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What Is Inside The Glow Stick
What Is a Glow Stick Ever wondered what is inside the glow stick you snap at a concert a birthday party or a night time hike It s not magic but it isn t just a simple plastic tube either Inside that bright neon colored cylinder lives a cocktail of chemicals that react when you break a small glass am
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Does Kinetic Energy Increase With Temperature
Have you ever sat by a campfire and felt that sudden intense rush of heat against your skin Or maybe you ve watched a pot of water slowly transition from a calm still surface to a violent bubbling boil It feels like magic but it s actually just physics doing its thing Specifically it s all about mot
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Whats A Row In The Periodic Table
Ever stared at the periodic table and wondered why some elements sit side by side like they re in a family photo Maybe you ve seen the grid noticed the neat rows and thought what s a row in the periodic table anyway It s a simple question but the answer opens a door to how chemists actually think ab
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What Is More Dense Oil Or Water
You ve seen it a hundred times Maybe in a salad dressing bottle Maybe in a pan when you re frying something and a drop of water hits hot oil The oil sits on top The water sinks Every single time But why And is it always true What Is Density And Why Oil and Water Dont Mix Density is just mass packed
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