What kind of simple machine is this?
Screw
This complex machine is made of _____ simple machine(s). (1, 2, 3, 4, 5)
2
True or False? Stems that grow below ground can make new stems from buds, like the potato’s “eyes”.
True
The design process has _____ steps. (7, 8, 9, 10)
8
Cactus stems grow _____. (above ground, below ground)
Above ground
This complex machine is made of _____ simple machine(s). (1, 2, 3, 4, 5)
4
True or False? Roots take in water and materials called minerals from the soil.
True.
True or False? Cactus stems grow below ground.
False.
How many steps does the design process have?
8
What kind of simple machine is this?
Screw
True or False? A prototype is the first working product that uses a design.
True
Which plant has part of it’s stem growing underground? (potato, pumpkin, cactus)
Potato
What kind of simple machine is this?
Inclined plane
This complex machine is made of _____ simple machine(s). (1, 2, 3, 4, 5)
2
True or False? Roots are parts of a plant that are usually below ground.
True
The first step of the design process is to identify the _____. (need, problem, solution)
problem
What's this?
Screw
This complex machine is made of _____ simple machine(s). (1, 2, 3, 4, 5)
3
What kind of simple machine is this?
Wedge
What's this?
Wheel and axle
What's this?
Pulley
What's this?
Wedge
What is the final step of the design process? (do research, communicate the results, evaluate and redesign)
evaluate and redesign
The second step of the design process is to _____. (build a prototype, do research, communicate the results)
do research
People use the design process to find a _____. (method, problem, solution)
solution
What kind of simple machine is this?
Lever
What supports the leaves, flowers, and fruits of plants. (stem, roots)
Stem
What kind of simple machine is this?
Screw
What are the most basic machines called?
simple machines
What kind of simple machine is this?
Wedge
True or False? The design process is a step-by-step method used to solve a problem.
True
True or False? Roots help keep the plants stable in the ground.
True
What kind of simple machine is this?
Wheel and axle
A complex machine is made up of _____ or more simple machines. (1, 2, 3, 4, 5)
2
True or False? Roots move water to the leaves.
False. Stems move water to the leaves.
Do we need to test the prototype?
Yes
What are these?
Roots
What part of a plant is this? (leaves, stem, roots)
Stem
What are these?
Leaves
What's this?
Lever
What's this?
Inclined plane