Show:
Equal Arm Balance
Beam Balance
Mobiles
Word Bank
Soils
100
What part of the equal arm balance allows the beam to move freely?
pin
100
A beam balance can be calibrated? True or False
True
100
Mobiles are only for baby cribs? True or False
False
100
What part of the equal arm balance holds the pails?
S hooks
100
Our local soils was made up of which soil components?
Humus and sand
200
What do you need to do each time you use the equal arm balance?
Calibrate
200
The equal arm balance has a pin to let the beam move freely. What does the beam balance have?
Fulcrum
200
What part of the mobile is the beam? What part of the mobile is the fulcrum? What part of the mobile is the weight?
Straw Clips Clips and paper
200
Definition: To balance a system before you use it.
Calibrate
200
What soil component gets sticky when it gets wet?
clay
300
How many different parts does a Equal Arm Balance have?
6 or 7 with clay
300
Is it easier to weigh objects on a beam balance or an equal arm balance?
equal arm balance
300
What do you need to do to calibrate your mobile?
Move the straw and/or move the weight
300
Definition: When something can be cut in half and both sides are exactly the same
Symmetrical
300
Which soil component had objects floating in the test tubes after it settled?
humus
400
The position of weight in the pails can be moved on an equal arm balance? True or False
False
400
What are two ways that the equal arm balance is different from the beam balance?
Answers will vary
400
What must a mobile be able to do?
Move Freely/balance
400
Adding cubes to the beam balance is changing what?
Amount of weight
400
Which soil component did not stick to the paper?
sand
500
What two functions does an equal arm balance have?
compare and weigh
500
To balance the beam balance where should the heavier weight be?
closer to the fulcrum
500
What are two ways that a mobile is the same as a beam balance?
Answers will vary
500
Definition: When parts work together to complete a function.
System
500
If you were to plant a seed, which soil would you plant it in to grow the healthiest plant?
local soil or humus