PBS
How Do You Measure the Size of the Universe?
The universe is HUGE. But, there is only so much of the universe we can ACTUALLY see, and if we wanted to measure that FINITE space, how would we do it? A gigantic ruler? One really long car ride? Or maybe it's something even more...
Bozeman Science
Continuity Equation
In this video Paul Andersen explains how the continuity equation is an application of conservation of matter in a fluid. The continuity equation may apply to either mass or volumetric flow. Example problem and examples are included.
TED-Ed
TED-Ed: What causes kidney stones? - Arash Shadman
The biggest kidney stone on record weighed more than a kilogram and was 17 centimeters in diameter. The patient didn't actually swallow a stone the size of a coconut; kidney stones form inside the body. So how do they grow in the first...
PBS
The Eye of Sauron Reveals a Forming Solar System!
Fomalhaut is a massive young star surrounded by a ring of dust debris that can tell us a great deal about the formation of our own solar system.
Be Smart
How Big is the Solar System?
I took a trip to one of Austin's famous moontowers so I could put the enormity of our solar system into perspective. With the help of a grapefruit, and a lot of walking, you'll get an idea of just how tiny everything is out there!!
Curated Video
Circumference Of a Circle
A video entitled "Circumference of a Circle" which shows how to use diameter or radius to calculate the circumference of a circle.
Curated Video
What Is Duckpin Bowling?
Howcast - Learn about duckpin bowling from world record-holding bowler Byron Toth in this Howcast video.
Curated Video
What Is the Bass Drum?
Howcast - Learn about the bass drum from drum teacher Jason Gianni in this Howcast drum video.
Curated Video
How to Play with a Bottleneck Slide in Country Guitar
Howcast - Learn how to play with a bottleneck slide in country guitar from musician Boo Reiners in this Howcast video.
Curated Video
How to Foam Roll Your Calves
Howcast - Learn how to foam roll your calves in this Howcast video featuring certified NYC trainer Amanda Edell.
Curated Video
How to Pick the Right Size Circular Needles
Howcast - Learn how to pick the right size circular knitting needles from expert Jessica Kaufman in this Howcast video.
Curated Video
What Is a Gun's Caliber?
Howcast -Learn what is meant by a gun's caliber from Police Officer Keith Charley in this Howcast gun video.
Curated Video
How to Stretch for Back Pain 3: Upper Back Spine Roller
Howcast - If you work at a desk all day, you probably have poor posture... and if you have poor posture, you probably have upper back pain. This stretch can work out the kinks—just don't hold back.
Curated Video
How to Calculate the Volume of a Cylinder
No matter the size, you can use the same simple formula to determine the volume of a cylinder.
Curated Video
Using the formula for the area of a circle
Pupil outcome: I can use the formula for the area of a circle to calculate either the area or a missing measurement. Key learning points: - The area of any circle can be found if the radius is known. - The radius can be calculated from...
Curated Video
Circumference of a circle
Pupil outcome: I can use the relationship C=πd to calculate unknown lengths in contexts involving the circumference of circles. Key learning points: - The formula can be used to find the circumference when you know the diameter. - The...
Curated Video
The angle in a semicircle is a right angle
Pupil outcome: I can derive and use the theorem: the angle in a semicircle is a right angle. Key learning points: - A theorem is a statement that can be demonstrated to be true by accepted mathematical operations and arguments - Theorems...
Curated Video
Multiplicative relationships in circles
Pupil outcome: I can recognise that there is a constant multiplicative relationship (π) between the diameter and circumference of a circle. Key learning points: - There is a multiplicative relationship between the radius and diameter of...
Curated Video
Finding a length in composite shapes
Pupil outcome: I can solve area problems of composite shapes involving whole and/or part circles where the area is known and the radius or diameter must be found. Key learning points: - The diameter can be found from the area of circles...
Curated Video
Area of a circle
Pupil outcome: I can understand the derivation of the area of a circle. Key learning points: - A circle can be cut into congruent sectors that are placed together to make a parallelogram. - The length of the parallelogram is half the...
Curated Video
Apply Coordinate Geometry Concepts to answer this Circles Question!
Welcome to our complete high school mathematics tutorial series! Whether you’re a student preparing for exams, a teacher seeking additional resources, or a parent helping your child succeed in math, these videos cover a wide range of...
Curated Video
Learn Trigonometry & Circles Together!
Welcome to our complete high school mathematics tutorial series! Whether you’re a student preparing for exams, a teacher seeking additional resources, or a parent helping your child succeed in math, these videos cover a wide range of...
Science Buddies
Rocket Catcher | 2025 Science Buddies Engineering Challenge
Design a device to catch a falling paper rocket in this fun engineering challenge!
Astrum
The Unique Characteristics of Saturn
Almost everything you could want to know about the sixth planet to the Sun, Saturn.