Respiratory systems are different in worms, fish, and human lungs, and each are explained by Paul Andersen with his fabulous SMART Board. How are these respiratory systems similar? Keeping breathing surfaces moist is essential in all...

The thinking, and science, behind hydrogen-powered cars is beautifully demonstrated in this episode. Spangler shows how, by itself, oxygen is not combustible. However, when some hydrogen gas is added, that changes! His assistant scoops...

Did you know that life in the sea generates 70% of our oxygen? If it weren't for the water, we wouldn't be here! Discover underwater mountains and volcanoes and take a glimpse at our negative global impact. What can you do to reverse...

The thinking, and science, behind hydrogen-powered cars is beautifully demonstrated in this episode. Spangler shows how, by itself, oxygen is not combustible. However, when some hydrogen gas is added, that changes! His assistant scoops...

The oxygen needed by our bodies to burn during respiration of glucose is obtained by ventilation. The anatomical structures involved in gaseous exchange are drawn and labeled. The explanations are excellent for a review or a student with...

Watch as the Khan Academy explains why red blood cells are efficient carriers of hemoglobin and explains the difference between pulmonary arteries and veins. This thorough video, complete with excellent explanations and diagrams, will...

Salman Khan is very enthusiastic about the topic of cellular respiration! He provides an interesting presentation of the respiration process. Expect to learn about the basic stages of respiration, how it works in the human body, and the...

He doesn't usually talk life science, but here, Steve Spangler discusses the damage that the mountain pine beetle is causing in the forests. He shows cross sections of affected tree trunks where a fungus that the beetle introduces...

Make a Halloween pumpkin foam at the mouth! Using hydrogen peroxide, toothpaste, and yeast, you can recreate this chemical reaction in your classroom. It can lead to a discussion of the way ingredients mix together to make a new...

A snowball earth would stay frozen once frozen; so what melted the ice? A manganese dioxide deposit gives some clue. One scientist focused on volcanic eruptions as contributing more oxygen into the air and warming the earth. This...

Intersperse your viewing of this video with questions that are shown on the screen. Keep your learners engaged by having them take notes and answer the questions. Parts of the respiratory system are shown with pictures and animation...

Despite slightly older animation, this fascinating video shows the path each red blood cell takes as it carries oxygen throughout the body. From the first pump of the heart pushing red blood cells to the lungs to pick up oxygen to the...

This quick clip shows the chemical gas exchanges that occur during respiration. Despite the robotic voice, this is an accurate and quick display of part of the respiratory process.

Astronauts need to wear spacesuits, but why? Learn all about the type of clothing astronauts need when they work in the outer atmosphere. The design, use, and testing of these spacesuits are discussed in this short informative clip.