One of the most bizarre proposals for life not as we know it doesn’t even use atoms. It proposes that fundamental kinks and defects in the fabric of the universe - cosmic strings beaded with magnetic monopoles - may evolve into complex...

Paul Andersen explains how a respirometer can be used to measure the respiration rate in peas, germinating peas and the worm. KOH is used to solidify CO2 produced by a respiring organism.

This week on SciShow Space News, researchers have figured out which gas drives fire fountain eruptions on the Moon. And you can send a message or your name to the Moon or Mars!

Mr. Andersen explains Hardy-Weinberg equilibrium and describes the bead lab.

SciShow explains a new breakthrough in our battle against pathogens: nano magnets that clean the blood!

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Nurdles are the tiny, factory-made pellets that form the raw material for every plastic product that we use, from toys to toothbrushes. And while they look pretty harmless on land, they can really wreak havoc on our oceans. Kim Preshoff...

Hank reveals the latest discoveries, including a way to make new, beating heart cells, ancient Egyptian jewelry made from meteorites, and the first mammal to be discovered in the Americas in 35 years, the adorable olinguito.

Mr. Andersen walks you through the cellular respiration lab.

Mr. Andersen uses chromosome beads to simulate both mitosis and meiosis. A brief discussion of gamete formation is also included.

In this Grade 7 math video, we will use a bar diagram to solve a real-world percent problem. We are told that 2/3 of the beads in a jar are one color, and the remaining 1/3 are a second color. The task is to determine what percent of...

Howcast - Learn how to make a no-sew cape out of fleece and ribbon with designer Jennifer Wiese in this Howcast video, part 4 of a 5-part series.

Howcast - Learn how to make a no-sew necklace out of an old t-shirt with designer Jennifer Wiese in this Howcast video, part 4 of a 5-part series.

Howcast - Learn how to make a no-sew necklace out of an old t-shirt with designer Jennifer Wiese in this Howcast video, part 3 of a 5-part series.

Howcast - Learn how to make a no-sew necklace out of an old t-shirt with designer Jennifer Wiese in this Howcast video, part 1 of a 5-part series.

Howcast - Learn how to do caviar nails from Spa Taxi owner Danielle Corbin Jaime in this Howcast nail tutorial.

Howcast - Learn four tips for creating a crystal bead bridal bouquet from floral designer Sarah Brysk Cohen in this Howcast video about wedding flowers.

Howcast - Let chef Michelle Doll show you how to put beautiful finishing touches on a wedding cake in this Howcast video.

Howcast - Learn how to make chandelier earrings with briolettes with this Howcast video about how to make jewelry.

Howcast - Learn how to make pearl and emerald cluster earrings with this Howcast video about how to make jewelry.

Howcast - Learn how to make a multi-colored wire-wrapped bracelet with a lobster clasp with this Howcast video about how to make jewelry.

Howcast - Learn how to start wire wrapping and adding beads with this Howcast video about how to make jewelry.

Howcast - Learn how to make a leather rattail necklace or wrap bracelet with wood beads with this Howcast video about how to make jewelry.

Howcast - Learn how to make a leather bracelet with trade beads with this Howcast video about how to make jewelry.

Howcast - Learn how to string beads on leather with this Howcast video about how to make jewelry.