The count down starts! 10……9……8………your nervous for take off……..4……….3……..no time to back out now………BLAST OFF! Your now hearing a tremendous sound from the shuttle blasting form the launch pad. You are now being forced into your seating causing you to feel 3x’s heavier that you normally are. 2 minutes later you feel a jolt as the solid rocket boosters separate from the shuttle. About 6 minutes later you feel another jolt from the main fuel tank separates. By now the force has eased off and you start to float and the only thing that holds you in your seat is your seat belt.

One of the greatest wonders of space flight is that people and objects float in space. The terms zero-gravity" or "weightlessness" have been replaced by the term "microgravity".

A spacecraft that is orbiting the Earth is not beyond the Earth's gravity (in fact, the Earth's gravity holds it in orbit). So the term zero-gravity is a bit misleading. People and objects aren't really weightless when in space.

What astronauts eat for food in What astronauts eat for food in Space!Space!

Astronauts basically do the same thing when they go to space. Preparation varies with the food type. Some foods can be eaten in their natural form, such as brownies and fruit. Other foods require adding water, such as macaroni and cheese or spaghetti. Of course, an oven is provided in the space shuttle and the space station to heat foods to the proper temperature. There are no refrigerators in space, so space food must be stored and prepared properly to avoid spoilage, especially on longer missions.

The astronauts do there share of cleaning the station. Sanitation is important in space because microorganisms can grow rapidly in conditions of an enclosed system like a space craft. If they do not regularly clean the dining area, sleeping area, toilets, and the eating equipment the astronauts could get very sick.

Garbage and worn clothes are sealed in air tight bags to be returned to Earth later.

http://ca.youtube.com/watch?v=HUe2HcFUPSo

Toilet clip

http://ca.youtube.com/watch?v=--YllvZX5ZY

*There first test was using a seatbelt.*They separate solids from liquids. Because it is easier to store that way.Solids fall to the floor but in space every thing floats around and it can really make you sick if you redigest something that came out of your body and they can not afford to get that sick in space.*Every thing that comes out of your body is pulled down. They have a storage tank that dry freezes everything so it kills all the bacteria so there is no smell, then once the storage tank is full the dump it in space and it burns up in the atmosphere.

After a long day at work, there is nothing like a good night's sleep! Just like on Earth, a worker in space goes to bed at night then wakes up the next day and prepares for work all over again. There are a few differences, though.In space there is no up or down and there is no gravity. As a result, astronauts are weightless and can sleep in any orientation. However, they have to attach themselves to a wall, a seat or a bunk bed inside the crew cabin so they don't float around and bump into something.Space shuttle and space station crews usually sleep in sleeping bags. On the space shuttle, astronauts can also sleep in the commander's seat, the pilot's seat or in bunk beds. There are only four bunk beds in the space shuttle. So that means on missions with five or more astronauts, the other crewmembers have to sleep in a sleeping bag attached to their seats or to a wall.

http://www.youtube.com/watch?v=9sGHGGruN7w

The Primary Life Support System- it is worn like a back pack. It provides astronauts many of the things they need to survive on a spacewalk. Its tanks supply oxygen for the astronauts to breathe. It removes exhaled carbon dioxide. It contains a battery for electrical power.

The EVA Gloves- Astronauts must be able to work with and pick up objects while wearing spacesuit gloves. EVA gloves are made to protect astronauts from the space environment. They are also made so spacewalkers can move their fingers as easily as possible. The fingers are the part of the body that gets coldest in space. These gloves have heaters in the fingertips. A piece called a bearing connects the glove to the sleeve. The bearing allows the wrist to turn.

The Display and Control Module- This module is the control panel for the mini-spacecraft. Switches, controls, gauges and an electronic display are on the module. The astronaut can operate the Primary Life Support Subsystem from this module.

The Arm Assembly- Spacewalkers do not wear custom-made suits. Different sizes of arm assembly parts are available. Sizing rings can make the parts longer or shorter.

The Helmet- Besides covering a spacewalker's head, the helmet has a Vent Pad. This pad directs oxygen from the Primary Life Support Subsystem and Hard Upper Torso to the front of the helmet. The helmet keeps the oxygen at the right pressure around the head. The main part of the helmet is the clear plastic bubble.

The Extravehicular Visor Assembly- The bubble is covered by the Extravehicular Visor Assembly. The visor is coated with a thin layer of gold that filters out the sun's harmful rays. The visor also protects the spacewalker from extreme temperatures and small objects that may hit the spacewalker.

The Liquid Cooling and Ventilation Garment- Most long underwear keeps people warm. This underwear keeps spacewalkers cool. It is made of stretchy spandex material. It has 91.5 meters, or 300 feet, of narrow tubes throughout. Water is pumped through the tubes near the spacewalker's skin. The chilled water removes extra heat as it circulates around the crewmember's entire body. The vents in the garment draw sweat away from the astronaut's body. Sweat is recycled in the water-cooling system. Oxygen is pulled in at the wrists and ankles to help with circulation within the spacesuit.

The Connection For Service and Cooling Umbilical Cooling- Connecting point for external communication lines, oxygen recharge lines, and a water drain line.

The Boots- Contain flexible sections to allow for knee and ankle joint mobility.

The Mini-Workstation- Holds assortment of tools to be used in space station construction. Each tool attaches to a spring-loaded, retractable reel to prevent loss if dropped.

http://www.childrensmuseum.org/cosmicquest/spacestation/level3e1.html

Quiz1. How do the astronauts sleep in space?

2. What do they do with the waste in space?

3. What would happen to the astronauts if they did not clean the space station regularly?

4. List all the parts of the space suite.

5. What do astronauts eat for food in space?

6. What is the other word for “Zero Gravity” and “Weightlessness”?

Answers1. They have to attach themselves to a

wall, a seat or a bunk bed.

2. They separate solids from liquids. Because it is easier to store that way. They dry freeze.

3. They would get sick.

4. Extravehicular Visor Assembly, display and control module, mini workstation, arm assembly, boots, helmet, primary life support system, connection service and umbilical cooling, gloves, liquid cooling ventilation garment.

5. Some foods can be eaten in their natural form. Others are heated.

6. Microgravity.