![Tamara Krawchenko à l'extérieur](/sites/default/files/styles/career_image/public/2022-04/Tamara%20Krawchenko.jpg?itok=7BPzYRw8)
Tamara Krawchenko (she/her)
Career Profiles
University Professor and Public Policy Researcher
![Vegetables and fruits on display](/sites/default/files/styles/resource_card_image_360x300_/public/2022-04/vegetables-and-fruits.jpg?itok=crppXKAt)
Plant Pigments
Backgrounders
Why are there so many colours of plants? Learn about plant pigments and their role in plants.
![Pepper plants on the ISS](/sites/default/files/styles/resource_card_image_360x300_/public/2022-04/peppers_ISS.jpg?itok=87tPUQjm)
Tropisms in Plants
Backgrounders
Learn about the different ways that plants move in response to their environments.
![Erkan Cakir avec le navire des garde-côtes sur lequel il a travaillé en arrière-plan](/sites/default/files/styles/career_image/public/2022-04/Erkan%20Cakir2.jpg?itok=cDz6G2JM)
Erkan Cakir
Mission Equipment Engineer
![Seedling with sunlight](/sites/default/files/styles/resource_card_image_360x300_/public/2022-04/seedling_sunlight.jpg?itok=FWDgKDZv)
Light & Plants
Backgrounders
Learn about the process of photosynthesis and how it is affected by light levels.
![Caroline Richard - Engineer in the mining industry](/sites/default/files/styles/career_image/public/2022-04/Caroline%20Richard-square.jpg?itok=bH2L8XMT)
Caroline Richard
Geotechnical Engineer
![Two girls exploring plant life in the woods](/sites/default/files/styles/resource_card_image_360x300_/public/2022-03/girls_exploring_in_the_woods.jpg?itok=IQE2HszD)
Developing a Hypothesis
Backgrounders
Learn what makes a good hypothesis, and how to develop one.
![A measuring tape wrapped around a tomato](/sites/default/files/styles/resource_card_image_360x300_/public/2022-03/tomato-and-measuring-tape.jpg?itok=_WY0wJOz)
Precision and Accuracy
Backgrounders
Learn about precision and accuracy and why they are important in science.
![Shari Forbes à l'extérieur du centre de décomposition humaine](/sites/default/files/styles/career_image/public/2022-03/Shari%20Forbes.jpg?itok=tS4g4EoW)
Shari Forbes (she/her/elle)
Career Profiles
Forensic Scientist
![Tomato plants grow in a greenhouse](/sites/default/files/styles/resource_card_image_360x300_/public/2022-03/tomato_plants_in_greenhouse.jpg?itok=7fWUbZkU)
Bias and Sources of Error
Backgrounders
Learn how scientists identify and minimize bias and sources of error to produce accurate results.
![A tomato labelled with a question mark](/sites/default/files/styles/resource_card_image_360x300_/public/2022-03/tomato_and_question_mark.jpg?itok=V06RujPD)
Asking Testable Questions
Backgrounders
Learn how scientists come up with experimental or testable questions.
![Three types of tomatoes](/sites/default/files/styles/resource_card_image_360x300_/public/2022-03/tomato_variables.jpg?itok=WEo4n-3S)
Identifying Variables
Backgrounders
Learn how scientists define independent, dependent and controlled variables in experimental inquiry.
![Seedlings in various stages of growth](/sites/default/files/styles/resource_card_image_360x300_/public/2022-03/seedlings_in_trays.jpg?itok=t9VL2jh8)
Setting Up a Fair Test
Backgrounders
Learn how scientists set up fair tests using comparison and variables.
![Lisa Jones](/sites/default/files/styles/career_image/public/2022-02/Lisa%20Jones.jpg?itok=mT4eQKuB)
Lisa Jones
Career Profiles
Manager of Strategic Initiatives
![Kasia Carisse devant un panneau de commandes](/sites/default/files/styles/career_image/public/2022-02/Kasia%20Carisse.jpeg?itok=6MbWRH_e)
Kasia Carisse
Career Profiles
Control Room Supervisor (Nuclear Power)