HS-ETS1-2
Design a solution to a complex real-world problem by breaking it down into smaller, more manageable problems that can be solved through engineering.
-
Health & MedicineSnot Science: A snotty setup
We’ve got a video with a snotty experiment. Now we describe how you can do the same test yourself. Try it!
-
Health & MedicineSnot Science: Results are nothing to sneeze at
We tested a lot of snot, but now we need to figure out what our data mean. Here’s how to group and analyze our data.
-
Health & MedicineSnot Science: Taking mucus to the next level
There’s more to science than just squirting snot. It’s time to place data in context and figure out how to take my boogers to the next level.
-
ComputingStar Trek technology becomes more science than fiction
On Star Trek, the characters used devices that seemed wild, futuristic and impossible. But those sci-fi gadgets are inspiring real-world, useful inventions.
-
How not to grin and bear it
Three teen researchers who took part in this year’s Broadcom MASTERS competition seek to help those who clench and grind their teeth.
By Sid Perkins -
AnimalsThese young inventors had to make like a crab
This year’s top challenge for Broadcom MASTERS finalists was to design and build a robotic arm based on a crab’s arm and claw.
By Sid Perkins -
AnimalsSpeckled dino spurs debate about ancient animals’ colors
Structures found in fossil dinosaur skin may give clues to the creatures’ colors and how they lived. But not all scientists agree on how to interpret what they see.
By Meghan Rosen -
ChemistryMilking chocolate for its health benefits
Researchers figure out how to give milk chocolate the same health benefits as dark chocolate. The secret ingredient is an extract from peanut skin.
-
Teen studies better cleaning through chemistry
Why do we use hot water and soap to get things clean? To find out, a teen invented a way to measure surface tension.
-
AnimalsCreative ways to help coral reefs recover
Coral reefs are under siege from threats ranging from climate change to explosives. But scientists are developing ways to rebuild reefs before they disappear.
-
EarthNicotine from smoke enters body through the skin
Scientists have shown for the first time that nicotine from cigarette smoke can enter the body through bare skin from the air or contact with smoky clothes.
-
GeneticsExplainer: What is epigenetics?
Epigenetics is the study of molecular “switches” that turn genes on and off. Tweak those switches and there could be big health consequences.
By Janet Raloff