Astronaut Drinking Water in Space
Kristin Hadfield Talking About Her Father and Commander Chris Hadfield Washing His Hands with Water
Follow this link to read this article and think how the information applies to Friday's math lesson on bringing water to space. You may recall that we discovered that astronauts are only permitted to carry 24 L of water with them up to space. Consider the reasons why so little amount of water is allowed per astronaut (ie. payload, weight, extra cost of fuel etc).
Show off what you know in a comment and the connections that you can make between this information and capacity and volume! Remind yourself of the definition of the words capacity and volume. Reflect on the size and shape of a 1 L container (pop, juice or milk) What other shapes of containers could be used to store 1 L of water.
HERE IS YOUR ASSESSMENT WORK. Due to be handed in on Thursday! On lined or graph paper. Available in classroom by shelves near sink. (Remember to clearly show your work, including formulas used)
1. Find the volume of a 1 L container. (marks = 3)
2. Show weight of 1 L of water (without container). You can take information from Friday, but show your numbers and work. (marks = 3)
3. On paper, with notes and measurements, design your own your version of a container that would have the same volume as a 1 L container. (marks = 5)
4. A group of NASA engineers is planning the best uses of available space in Space Shuttles and the International Space Station. You have been asked to come up with a design for a container that can hold 24 Litres of water — the amount an astronaut is allowed for one day.
Remember you need to address the problem of conserving space on the Shuttles and on the space station. In you design you need to show your strategies and solutions for solving the space and weight problem. Consider how you would know that a container is big enough to hold 24 Litres.
About how heavy would your container be if it were filled with 24 Litres of water? (Use Earth weight here. Think about how we found weight of container and water on Friday.) (Marks = 14)
Astronauts only carry so much water because over one year, about 2200 L are being transported to space. The cost for all of that is about $11210! If you think about it, bringing water and other supplies, having enough fuel and other needs in space will cost so much money. Rocket ships have to carry their own weight, plus all of the appliances, so weight is important when bringing water as well.
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