Although mom controls the oxygen source, the fetus has a couple of clever tricks to get the most oxygen possible! Rishi is a pediatric infectious disease physician and works at Khan Academy.

Learn how the needs of the fetus are met by the placenta, which is a special organ that belongs to both the mother and the fetus! Rishi is a pediatric infectious disease physician and works at Khan Academy.

Using the stethoscope to check blood pressure is a technique thatپگs been used for >100 years! Blood pressure is one of the major vital signs frequently measured by health care workers, and it tells us a lot about our blood circulation. Learn what blood pressure is, how it relates to resistance in a tube, why it is necessary to get oxygen to your cells, and how it can change as you age. Weپگll finally put it all together by relating pressure, flow, and resistance in one awesome equation!

No organ quite symbolizes love like the heart. One reason may be that your heart helps you live, by moving ~5 liters (1.3 gallons) of blood through almost 100,000 kilometers (62,000 miles) of blood vessels every single minute! It has to do this all day, everyday, without ever taking a vacation! Now that is true love. Learn about how the heart works, how blood flows through the heart, where the blood goes after it leaves the heart, and what your heart is doing when it makes the sound پàLub Dubجز.

Every time you take a breath, oxygen makes it way into your lungs. Follow along on that journey! Rishi is a pediatric infectious disease physician and works at Khan Academy.

The choices students learn to make when they’re young can have a lasting impact on their lifetime well-being, happiness, and academic success. But 96% of elementary schools are unable to provide daily physical education. EVERFI’s Healthier Me is an innovative, games-based digital course that educates elementary school students about the importance of well-balanced meals and physical activity, preparing them to make healthy, informed decisions when it comes to nutrition and fitness and securing healthier, happier futures for the next generation.

This Course Covers
Making healthy decisions
Eating well-balanced meals
Nutritional properties of foods
Benefits of physical activity
Balancing strength, endurance, and flexibility

The health-related choices students learn to make when they’re young can have a lasting impact on their lifetime well-being, happiness, and academic success. EVERFI’s Healthier Me is an innovative, games-based digital course that gives middle school students the tools to make healthy, informed decisions when it comes to health and nutrition. Throughout the course, students embark on fun wellness adventures through interactive games—from completing grocery shopping to creating a well-balanced cafeteria lunch—working through true-to-life scenarios to help them achieve positive wellness outcomes.

This Course Covers
Interpreting & analyzing nutrition labels
Eating well-balanced meals
Nutritional properties of foods
Setting goals to increase healthy habits

Healthline is a great A-to-Z resource for various physical and mental health issues, emphasizing expert content with genuine caring. And you don't need to be under the weather to benefit from this website.

In addition to providing timely, modern health advice, Healthline is a beautifully presented and information-packed resource for your overall health and wellness. At Healthline, you'll find nutritious recipes, workout ideas, fitness and eating tips, and the latest in health news.

"Healthy Start is a bilingual program developed in Saskatchewan that increases healthy eating and physical activity opportunities in early learning environments."

*be sure to check out the resources section & the newsletters

Students learn about the anatomy of the ear and how the ears work as a sound sensor. Ear anatomy parts and structures are explained in detail, as well as how sound is transmitted mechanically and then electrically through them to the brain. Students use LEGO® robots with sound sensors to measure sound intensities, learning how the NXT brick (computer) converts the intensity of sound measured by the sensor input into a number that transmits to a screen. They build on their experiences from the previous activities and establish a rich understanding of the sound sensor and its relationship to the TaskBot's computer.

Heart Word Magic is a complimentary teaching tool designed to help students learn to read and spell high-frequency words and sight words, particularly those that aren’t very decodable.

Show your students the animations, then try the fun, hands-on free Student Practice Activities.

During World War II, Charles “Checker” Tomkins fought the enemy with a different kind of weapon. As a code talker in the Canadian military, he used his knowledge of the native Cree language to help develop a top-secret communication system to defeat the Germans.

This lesson describes how the circulatory system works, including the heart, blood vessels and blood. Students learn about the chambers and valves of the heart, the difference between veins and arteries, and the different components of blood. This lesson also covers the technology engineers have developed to repair the heart if it is damaged. Students also understand how the circulatory system is affected during spaceflight (e.g., astronauts lose muscle in their heart during space travel).

Cycles are a big deal in engineering. Today we’ll explain what they are and how they’re used in heat engines, refrigerators, and heat pumps. We’ll also discuss phase diagrams and the power of using renewable energy resources

Students' eyes are opened to the value of creative, expressive and succinct visual presentation of data, findings and concepts. Student pairs design, redesign and perform simple experiments to test the differences in thermal conductivity (heat flow) through different media (foil and thin steel). Then students create visual diagrams of their findings that can be understood by anyone with little background on the subject, applying their newly learned art vocabulary and concepts to clearly communicate their results. The principles of visual design include contrast, alignment, repetition and proximity; the elements of visual design include an awareness of the use of lines, color, texture, shape, size, value and space. If students already have data available from other experiments, have them jump right into the diagram creation and critique portions of the activity.

Through a teacher demonstration using water, heat and food coloring, students see how convection moves the energy of the Sun from its core outwards. Students learn about the three different modes of heat transfer (convection, conduction, radiation) and how they are related to the Sun and life on our planet.

Today we’re talking about heat transfer and the different mechanisms behind it. We’ll explore conduction, the thermal conductivity of materials, convection, boundary layers, and radiation.

Students explore heat transfer and energy efficiency using the context of energy efficient houses. They gain a solid understanding of the three types of heat transfer: radiation, convection and conduction, which are explained in detail and related to the real world. They learn about the many ways solar energy is used as a renewable energy source to reduce the emission of greenhouse gasses and operating costs. Students also explore ways in which a device can capitalize on the methods of heat transfer to produce a beneficial result. They are given the tools to calculate the heat transferred between a system and its surroundings.

Students discover the scientific basis for the use of inclined planes. Using a spring scale, a bag of rocks and an inclined plane, student groups explore how dragging objects up a slope is easier than lifting them straight up into the air. Also, students are introduced to the scientific method and basic principles of experimentation. To conclude, students imagine and design their own uses for inclined planes.