![Timothy Burkhart](/sites/default/files/styles/resource_card_image_360x300_/public/2020-11/Timothy_Burkhart.jpg?itok=_rID7Ano)
Query a Career Profile
Lessons
Students will explore career profiles and relate them to what they are learning in science class.
![Cross-section of the Earth showing layers.](/sites/default/files/styles/resource_card_image_360x300_/public/2020-07/earth-core-structure-with-geological-layers.jpg?itok=_R5VEnY-)
Why does the Earth have Layers?
STEM Explained
An in-depth look at how the Earth got its layers.
![Jamie Sevigny au travail](/sites/default/files/styles/career_image/public/2020-02/Jamie%20Sevigny.jpg?itok=kg6JcDjB)
Jamie Sevigny
Career Profiles
Management Engineer
![Close-up of the Arecibo Observatory radio telescope](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/close-up_arecibo-observatory.jpg?itok=CTR21nm6)
SETI - The Search for extraterrestrial Intelligence
Backgrounders
Some astronomers are not looking for stars, planets or galaxies. They are searching for intelligent life in the universe beyond our planet.
![Thomas Graham](/sites/default/files/styles/career_image/public/2020-01/Tom%20Graham%20at%20haughton%20crater.png?itok=yMLRqy4E)
Thomas Graham
Career Profiles
Research Scientist, Space Farming
![Photo de Mike Dixon](/sites/default/files/styles/career_image/public/2020-01/mike%20dixon.jpg?itok=srNXyg1T)
Mike Dixon
Career Profiles
Professor and Director of CESRF
![Carl Dixon](/sites/default/files/styles/career_image/public/2020-02/Carl%20Dixon.jpg?itok=asZH3RFI)
Carl Dixon
Career Profiles
Naval Communicator
![Keven Bruce | Tactical Weather Specialist](/sites/default/files/styles/career_image/public/2019-09/Kevin%20Bruce.jpg?itok=-QI0mlRn)
Keven Bruce
Career Profiles
Tactical Weather Specialist
![Alexis Dorais | Analyste en télédétection](/sites/default/files/styles/career_image/public/2019-09/Alexis%20Dorais.jpg?itok=tFxfkVG7)
Alexis Dorais
Career Profiles
Remote Sensing Analyst
![Scott Kelly et Terry Virts inspectent le système d’élimination du dioxyde de carbone de la SSI (Photo via Wikimedia Commons)](/sites/default/files/styles/resource_card_image_360x300_/public/2019-08/6572.jpg?itok=uSk7J690)
Carbon Dioxide on Earth and on the ISS
Backgrounders
Carbon dioxide is an important part of the air on Earth and in space. What is carbon dioxide? How is it measured? How can it affect us mentally and physically?
![ChaoticMind75 - iStock](/sites/default/files/2019-08/why-is-it-colder-in-the-winter-even-though.jpg)
Why is it colder in the winter even though the Earth is closer to the Sun?
Hands-on Activities
Learn why we have seasons in this hands on activity.
![The planet Mars](/sites/default/files/2019-10/Mars.png)
What is your weight on another planet?
Hands-on Activities
Do you weigh the same on Jupiter as you do on Earth? Learn to calculate your weight on a different planet.
![What would happen if a meteor hit Earth?](/sites/default/files/2019-08/what-would-happen-if-a-meteor-hit-the-earth_0.jpg)
What would happen if a meteor hit Earth?
Hands-on Activities
Explore the effects of asteroid impacts in this hands on activity.
![International Space Station in the rays of the Sun](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/international-space-station-in-the-rays-of-sun.jpg?itok=XvahdQ2K)
Temperature on Earth and on the ISS
Backgrounders
Temperature is an important part of life on Earth and life in space. This backgrounder explains what temperature is, how it affects people and how it is controlled on the International Space Station.
![Mars Science Laboratory Parachute Qualification Testing](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Mars_science_lab_parachute_testing.jpg?itok=Ly8xx3i5)
Testing Parachutes for Mars
STEM Explained
NASA engineers apply kinematics and dynamics to test parachutes designed specifically to help space probes land safely using aerodynamics.