Tomato plants belong to the plant group known as flowering plants or angiosperms. Flowers are important for reproduction and the production of seeds.
Because the ISS is dependent on Earth for its full life support needs, it is an open system. Scientists are working on creating a closed system using machinery and programs to recycle and reuse matter to maintain a supply of air, water, and food independent from Earth.
Eating is one of life’s great pleasures, even when orbiting 400 kilometres above the surface of the Earth. Learn how NASA is feeding today’s astronauts on the International Space Station (ISS) and see how they plan to feed tomorrow’s astronauts on a mission to Mars.
This YouTube video, by a teacher, explains the purpose of a hypothesis and how to construct one.
This YouTube video, from It’s Okay to Be Smart (PBS), explains the difference between the terms fact, theory, hypothesis and law in science.
This YouTube video, from teacher Courtney Mann, has information about creating well-defined, testable questions.
Join Paxi on his journey to the Red Planet to investigate if Martians exist, and learn about the European Space Agency's ExoMars missions. (4:53 min.)
In this European Space Agency's video, follow Paxi on his journey to Mars, where he will explore the planet's dry river beds, volcano, and polar ice caps. (5:06 min.)
Join Paxi on a journey through our Solar System, from the rocky inner planets close to the Sun, past the giant planets to the freezing edge, the home of comets. (5:18 min.)
High Definition time lapse of three tomato plants sprouting and growing. The days listed in the bottom left corner of the screen are days since planting. The text in the bottom right indicates when the plants were watered. (1:13 min.)
Jessi and Squeaks show you how a tiny seed -- like the kind you eat in your trail mix! -- grows into a big plant!
In this video, children can learn all about seeds. How seeds germinate, types of seed dispersal, parts of a seed and what are the functions of different parts of a seed. In short, a lesson all about seeds.
This YouTube video, from Simple Science by Mark Drollinger, shows how controlled experiments are done using an example with plants.
This You Tube video, from SciExperiment Basics, explains how to identify and control variables in a scientific inquiry.
The Milestones in Space Plant Research timeline highlights the efforts of research agencies around the world to investigate the effects of the space environment on plant life. Follow the timeline from 1946 until the present day, where space plant research has evolved the goal of a self-sustaining food production system in space.