Cutting of an apple, erosion of a sand castle, and weathering of a statue are examples of what type of change?
What is physical
100
The one things you change on purpose
What is independant variable
100
1/8 x 1/2
What is 1/16
100
3/4 divided by 9
What is 1/12
200
This type of property describes how something looks.
What is physical
200
What happens when you stir salt into water
What is dissolve
200
What you measure
What is dependent variable
200
2/3 x 4
What is 2 and 2/3
200
1/3 divided by 5/6
What is 2/5
300
Anything that has mass and takes up space
What is matter
300
Best order to separate gravel, powder, and salt from water (using these verbs: evaporation, filtering, screening)
What is screening, filtering, evaporation
300
The things that don't change
What is constant
300
2/3 x 1/4
What is 1/6
300
3/4 divided by 2/3
What is 9/8 or 1 and 1/8
400
Precipitate forming, bubbles, and temperature change are evidence of what type of change?
What is chemical
400
A change of temperature of water when you add ice cubes, dust particles "dancing" in the sunshine, and the fact that gas molecules can escape a room are evidence that atoms have random or predictable motion?
What is random
400
The phrase for the title of a data table, or data graph
What is "The effect of (iv) on (dv)
400
1/2 x 2 and 3/8
What is 1 and 3/16
400
4 and 1/6 divided by 10
What is 5/12
500
A pure substance
What is only one type of "thing"
500
How much or how little of a substance is in water
What is concentration
500
Three things necessary for a fair test
What is one thing changed, several trials, and able to reproduce the experiment