Astronauts traveling to Mars will need to grow some of their own food in order to survive and stay healthy. But on Mars will there be enough light to meet the needs of growing plants?
Air is made up of nitrogen (78%) and oxygen (21%) with small amounts of other gases such as argon and carbon dioxide. It probably then comes as no surprise that nitrogen is important for all organisms as it helps them to live and grow.
Most people do not think twice about soil, but we could not live without it. The plants we eat, and the plants that feed the animals we eat, depend on soil. Plant roots need soil for physical support. Plants also get nutrients from soil, which they need for healthy growth and development. Future astronauts on a long-term mission to Mars will want to grow some food crops to add to their diet of packaged food.
The Seeds of Knowledge learning strategy offers students a process to practice the skill of making connections by connecting their prior knowledge and learning experiences from previous grades to a new inquiry opportunity, such as the Tomatosphere™ Seed Investigation.
The Making Connections Organizer learning strategy uses a graphic organizer to help students connect science inquiries to their prior knowledge and experiences, prior inquires and the world at large.
Japanese astronaut Kimiya Yui on board the International Space Station shows Paxi what it's like to prepare and eat food in weightlessness on the ISS.
The skill of questioning allows students to pursue their ideas and explore the world around them. Being able to ask rich questions about who, what, where, when, why, and how, enables students to construct their knowledge and develop an understanding of concepts and experiences.
The Testable Questions Toss-up learning strategy offers students a process to generate and practice writing testable questions that may be applied to conducting fair tests within an inquiry investigation.
The skill of Making Connections involves the process of connecting prior knowledge to new knowledge and experiences. This process allows students to relate what they read, see, do and experience to themselves, to the world around them and/or to other things they have read, seen or experienced previously.
When we measure things, most people are only worried about how accurate, or how close to the actual value, they are. Matt Anticole explains what exactly precision is and how can help us to measure things better.
Grade 3 (Elementary 2)
Kindergarten, Grades 1,3,4,5 (Elementary 1,2,3)
Kindergarten and Grade 3 (Elementary 1-2)
Grades 1 and 3 (Elementary 1-2)