Systems: groups of parts working together TEKS 2.6B Parts can do things when put together that they...
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Systems: groups of parts working together TEKS 2.6B Parts can do things when put together that they cannot do by themselves
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Transcript of Systems: groups of parts working together TEKS 2.6B Parts can do things when put together that they...
Systems: groups of parts working together
TEKS 2.6B Parts can do things when put together
that they cannot do by themselves
Parts of a SystemWhat can each of these parts do
separately?
Fabric Boat
Rope Logs
A System
• Altogether the parts could make a system called a sailboat
• What can a sailboat do that logs, fabric, a boat and rope cannot do by themselves?
A Sailboat as a System
• Wood can float, but not in a specific direction.
• A boat can float and move with water currents.
• Fabric hanging on a line can move with the wind.
• A rope can be used to tie things together.
• Put together, all of these items can make a system called a sailboat. The parts work together to make a system that can use the wind to move very fast in a specific direction.
Parts of a SystemWhat can each of these parts do
separately?
Leaves A Trunk Roots
Acorns Bark
A System
• Altogether the parts make a system called a tree
• What can a tree do that the separate parts cannot do?
A Tree as a System
• Leaves absorb sunlight and make food
• A trunk provides support• Roots absorb water and
nutrients from the soil• Acorns can grow into
new trees• Bark protects the tree
and holds in moisture
• Altogether, a tree can take in sunlight, water and gases to produce food. A tree can also stand upright, even in the wind. A tree can produce seeds, which later become new trees.
TAKS Question
Look at this picture of a bicycle.
Explain how the rider, the pedals, the chain and the wheels work together to make the bicycle move.
Answer
The bike rider provides the force to move the bicycle by pushing on the pedals. The chain is attached to the pedals, and this makes the chain go around. The chain is also attached to the rear wheel. When the chain goes around, so does the rear wheel. When the wheels move, the bicycle moves.
Parts of a System
• Check out this website: http://autorepair.about.com/cs/funstuff/l/bl_honda.htm
• In what ways is a car an example of a system?
• What can a car do that each of the individual parts cannot do?
