Students learn about biomimicry and how engineers often imitate nature in the design of innovative new products. They demonstrate their knowledge of biomimicry by practicing brainstorming and designing a new product based on what they know about animals and nature.

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Music: Sunday Spirit

Students learn about electrical connections, how they work and their pervasiveness in our world. They consider the usefulness of wireless electrical connections for connecting electrical devices. Morse code is introduced as a communication method that takes advantage of on/off states to transmit messages by electrical bursts sent via wires, light or sound. They learn the Morse code rules and translate a few phrases into Morse code. Specifically, they learn about a wireless connection type known as Bluetooth that can be used to control LEGO robots remotely from Android devices, which leads into the associated activity.

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Students apply their knowledge about mountains and rocks to transportation engineering, with the task of developing a model mountain tunnel that simulates the principles behind real-life engineering design. Student teams design and create model tunnels through a clay mountain, working within design constraints and testing for success; the tunnels must meet specific design requirements and withstand a certain load.

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Music: Lone Wolf - Dan Lebowitz

In this math activity, students conduct a strength test using modeling clay, creating their own stress vs. strain graphs, which they compare to typical steel and concrete graphs. They learn the difference between brittle and ductile materials and how understanding the strength of materials, especially steel and concrete, is important for engineers who design bridges and structures.

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https://www.teachengineering.o....rg/activities/view/c

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Music: Cali Buzz - Yung Logos

Students investigate the property dependence between concentrations and boiling point. In section 1, students first investigate the boiling point of various liquid solutions. In section 2, they analyze data collected by the entire class to generate two boiling point curves, one for salt solutions and one for sugar solutions. Finally, in section 3, students use the data they have analyzed to determine how to create a solution that has a particular boiling point and is a cost-effective design.

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https://www.teachengineering.o....rg/activities/view/w

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Music: Trancer

Students design and build paper rockets around film canisters, which serve as engines. An antacid tablet and water are put into each canister, reacting to form carbon dioxide gas, and acting as the pop rocket's propellant. With the lid snapped on, the continuous creation of gas causes pressure to build up until the lid pops off, sending the rocket into the air. The pop rockets demonstrate Newton's third law of motion: for every action, there is an equal and opposite reaction. An instructions handout, worksheets (English and Spanish) and quiz are provided.

View the full activity on TeachEngineering: https://www.teachengineering.o....rg/activities/view/c

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Music: Little Idea - Bensound.com

The minions are stuck on a deserted island! Students use the engineering design process to research, design, create and test boats that can rescue the minions. They learn about the physical properties of matter as well as the construction of boats and buoyancy while they engineer a minion rescue.

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https://www.teachengineering.o....rg/activities/view/u

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Music - Arriba Mami by Jingle Punks

Engineers make everyone happy: Environmental and electrical engineers design industrial air filters (such as electrostatic precipitators) that remove harmful pollutants from factory air without slowing down the production of the plant. Implementation of this technology has resulted in cleaner emissions into the air we breathe, from power plants, steel mills and other manufacturing and industrial processes and factories. Engineers can do this because they study static electricity and understand what is happening at the very tiny level of electrical charges, which are too small to see.

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Music: Safety Net-Riot

To increase students' awareness of possible invisible pollutants in drinking water sources, students perform an exciting lab requiring them to think about how solutions and mixtures exist even in unsuspecting places such as ink. They use alcohol and chromatography paper to separate the components of black and colored marker ink. Students witness first-hand how components of a solution can be separated, even when those individual components are not visible in solution.

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https://www.teachengineering.o....rg/activities/view/w

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Music: Arriba Mami -Jingle Punks

Students conduct a simple experiment to see how the water level changes in a beaker when a lump of clay sinks in the water and when the same lump of clay is shaped into a bowl that floats in the water. They notice that the floating clay displaces more water than the sinking clay does, perhaps a surprising result. Then they determine the mass of water that is displaced when the clay floats in the water. A comparison of this mass to the mass of the clay itself reveals that they are approximately the same.

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Music: Thingamajig- Audionautix

Air is one of Earth's most precious resources, and we need to take care of it in order to preserve the environment and protect human health. To this end, students develop their understanding of visible air pollutants with an incomplete combustion demonstration, a "smog in a jar" demonstration, and by building simple particulate matter collectors.

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https://www.teachengineering.o....rg/activities/view/c

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Music: Blue_Macaw - Quincas Moreira

Air pressure is pushing on us all the time although we do not usually notice it. In this activity, students learn about the units of pressure and get a sense of just how much air pressure is pushing on them.

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TeachEngineering has over 1,500 FREE lessons and activities. Visit https://www.teachengineering.org/ for more

Through investigating the nature, sources and level of noise produced in their environment, students are introduced to the concept of noise pollution. They learn about the undesirable and disturbing effects of noise and the resulting consequences on people's health, as well as on the health of the environment. They use a sound level meter that consists of a sound sensor attached to the LEGO® EV3 Intelligent Brick to record the noise level emitted by various sources. They are introduced to engineering concepts such as sensors, decibel (dB) measurements, and sound pressure used to measure the noise level. Students are introduced to impairments resulting from noise exposure such as speech interference, hearing loss, sleep disruption and reduced productivity. They identify potential noise pollution sources, and based on recorded data, they classify these sources into levels of annoyance. Students also explore the technologies designed by engineers to protect against the harmful effects of noise pollution.

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https://www.teachengineering.o....rg/activities/view/n

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Music: Valerie_Plain- Rondo Brothers

Students are introduced to the space environment, learning about the major differences between the environment on Earth and that of outer space (atmosphere, radiation, microgravity)— and the engineering challenges that arise because of these differences. To prepare students for the upcoming lessons on the human body, they are challenged to think about how their bodies would change and adapt in the unique environment of space.

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https://www.teachengineering.o....rg/lessons/view/cub_

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To gain a better understanding of the roles and functions of components of the human respiratory system and our need for clean air, students construct model lungs that include a diaphragm and chest cavity. They see how air moving in and out of the lungs coincides with diaphragm movement. Then student teams design and build a prototype face mask pollution filter. They use their model lungs to evaluate their prototypes to design requirements.

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https://www.teachengineering.o....rg/activities/view/c

TeachEngineering has over 1,500 FREE lessons and activities. Visit https://www.teachengineering.org/ for more

Music: Sky Scraper - Geographer

Students are introduced to the role of electricity and magnetism as they build speakers. They also explore the properties of magnets, create electromagnets, and determine the directions of magnetic fields. They conduct a scientific experiment and show cause-effect relationships by monitoring changes in the speaker's movement as the amount or the direction of the current change.

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Music: Rollanddrop - Jingle Punks
Santo Rico - Twin Musicom

You’re free to use this song in any of your videos, but you must include the following in your video description:
Santo Rico by Twin Musicom is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...)
Artist: http://www.twinmusicom.org/

What is magnetism? How do we see the phenomenon of magnetism in our daily lives? How do engineers leverage magnetism to help design and create devices we use? TeachEngineering delves into the different types of magnets and how they show up in our world today!

https://www.teachengineering.o....rg/populartopics/mag

Music: Blue Macaw

Students learn about the advantages and disadvantages of the greenhouse effect. They construct their own miniature greenhouses and explore how their designs take advantage of heat transfer processes to create controlled environments. They record and graph measurements, comparing the greenhouse indoor and outdoor temperatures over time. Students are also introduced to global issues such as greenhouse gas emissions and their relationship to global warming.

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https://www.teachengineering.o....rg/activities/view/c

TeachEngineering has over 1,500 FREE lessons and activities. Visit https://www.teachengineering.org/ for more!

Music: Santo Rico- Twin Musicom

Students work together in small groups, while competing with other teams, to explore the engineering design process through a tower building challenge. They are given a set of design constraints and then conduct online research to learn basic tower-building concepts. During a two-day process and using only tape and plastic drinking straws, teams design and build the strongest possible structure. They refine their designs, incorporating information learned from testing and competing teams, to create stronger straw towers using fewer resources (fewer straws). They calculate strength-to-weight ratios to determine the winning design.

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Music - Educated Man by Max McFerren

In this activity, students reinforce their understanding of compound machines by building a catapult. This compound machine consists of a lever and a wheel-and-axel. Catapults have been designed by engineers for a variety of purposes — from lifting boulders into the air for warfare to human beings for entertainment; the projectiles in this activity are grapes for a magic act. Given the building materials, students design and build their catapult to launch a grape a certain distance.

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https://www.teachengineering.o....rg/activities/view/c

TeachEngineering has over 1,500 FREE lessons and activities. Visit http://www.TeachEngineering.org for more!

Music: Sky Scraper - Geographer

In this hands-on activity, students explore the phenomenon of static electricity by engaging in the science and engineering practices of asking questions and planning and carrying out investigations. Students enact a “human diagram” to model the Bohr model of an atom. Then, in pairs, they charge a comb (on hair) and use it to attract an O-shaped piece of cereal and then watch the cereal jump away when it touches the comb. They do the same with Styrofoam pellets, observing them pulling towards a charged comb, then leaping back to the table. Through these investigations, students explore the disciplinary core ideas of electric and magnetic forces, the crosscutting concept of cause and effect, and they make sense of static electricity and what’s going on at the atomic level.

View the full activity on TeachEngineering:
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Music - Educated Man

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Ancient History is soo fascinating! 😮 it’s amazing that we know so much about so long ago! 😊

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Hello Friends! Welcome to a new Happy Learning video.
Today, we’re going to travel to Ancient Egypt to get to know the mysteries of their pyramids and mummies. But don’t be scared! because they don’t do anything.

As you already know, Ancient Egyptians believed in life after death, that’s why they built the pyramids, which were the pharaohs’ tombs. During their construction, there were thousands of workers for a very long time. Before, we believed that they were built by slaves, but thanks to archaeologist's work, we know that they were built by citizens that worked for salt, wheat or barley. These workers were organised and directed by architects and engineers that made sure everything was calculated and done properly.
Today, we see that pyramids are old, but when they had just been built, they were covered in beautiful white limestone and the tip of the pyramid was golden. I’m sure they were beautiful.

Inside the pyramids, there are tunnels, chambers and secret passageways. And this was where they left the pharaoh’s mummified bodies.

But do you know what a mummy is? A mummy is a person’s or animal’s body that is kept after death. Because Ancient Egyptians believed in life after death, they wanted to preserve their bodies, but it was a very expensive process so only pharaohs and some noblemen were able to do it.
The mummification process took 70 days.
First, the body was washed and all its interior organs, except the heart were removed. Then, the body was filled with linen and covered in salt for about 50 days.
After this time, the body was wrapped in bandages and placed in a luxurious sarcophagus. Thanks to this mummification process, many mummies are in a perfect state today, and have allowed us to learn so many things about Ancient Egypt.

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Hi Children, in this educational video we are going to learn another interesting animal, the chameleon, a multi-coloured reptile.
The chameleon is one of nature’s most curious reptiles, its capable of changing colour to camouflage, or to say, it can change its colour to match that of its surroundings, so no predators can see it… Look, look, try to find it…
The chameleon, like all reptiles, has a body that is completely covered in hard scales that protect him from its enemies, but they have a characteristic that makes them very special in comparison to other reptiles, do you know which one it is?
As you have discovered by looking at the images, chameleon’s eyes are very special. They are cone shaped and in the centre they have a hole where the pupil peeks out. The cone shape allows them to easily rotate their eyes completely in any direction. They can also move each eye independently, and that is why they have a 360 view, which is to say they can see everything that is happening around them without moving their head. But everything good that they have in their sight is bad in their hearing, why though? Why do you think that is?

As you can see they don’t have any ears and its believed they are deaf.
As we have already said the fundamental characteristic a chameleon has is that it can change its skin colour to adapt to its surrounding. However the colour change also depends on its emotional state… if they are angry… if they are scared or in love.
Another characteristic that surprises everyone is their way of hunting. Chameleons, like crocodiles, snakes and the majority of reptiles are carnivorous… which is why they need to hunt to survive.
The chameleons hunt their pray with their tongs. Their tongue is very long and can be deployed very rapidly. Its tip is sticky and when it touches its prey it sticks to it, making it very easy to then eat them. Chameleons feed mainly on insects although sometimes they can eat in small mammals or birds.

The truth is that chameleons are very extraordinary animals, don’t you think?

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Educational Videos and songs for Kids. Today we’re going to learn about amphibians!

Hello everybody! Today we’re going to look at a truly amazing group of vertebrates... When they’re born they usually live in water... but when they grow up and become adults they spend most of their time on land. We present - the Amphibians!
All amphibians have some common characteristics that you should know about so you can recognize and differentiate them.
Amphibians have thin, bare skin, with no hairs and scales to protect them. Most have four legs and a membrane between their toes that allows them to move much better in the water.
Amphibians are oviparous, but they don’t incubate their eggs after laying them... they abandon them and don’t care for their young. Not very good parents, huh?
When they hatch, they’re small larvae and live in water. Slowly... very slowly... their bodies go through a process called metamorphosis.
During this process, the body of the amphibian... changes... their front and rear legs, their limbs, grow... and their heads and their bodies develop, so they finally look like their parents.
In the early stages of their lives... amphibians breathe through gills, but when they grow up and become adults... they breathe with their lungs. The problem is, their lungs are very small, and cannot get all the oxygen they need to live. But nature is very clever... and has solved this problem by allowing them to breathe and get the oxygen they need... through their skin. That’s why they need to be near water - to keep their skin wet.
In the early stages of their life, some amphibians are herbivores, but when they grow up... most become carnivores. So they need to hunt...
Some have a long, sticky tongue they shoot out to capture prey.
Aren’t amphibians fascinating? And also a bit strange?!
So let’s remember the most important characteristics...
Amphibians are vertebrates; they’re oviparous; in the early stages of their life they live in water as larvae, but slowly they change until they look just like their parents. This process of change is called metamorphosis.
Amphibians are carnivores, so they have to hunt to eat; they have thin, smooth skin, and breathe through their skin and with their lungs.
Amphibians are so interesting, aren’t they?
Goodbye for now everyone, and don’t forget to subscribe to Happy Learning!

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