What is the density formula? What is the density of the box if it is 15 g and has a volume 3 ml? What is the density of the box if it is 15 g and has a length of 3 cm, height of 1 cm, and width of 3 cm?
D= m/v; 5 g/ml; 5 g/cm ^3
100
View figure 1. Would you estimate the amount of clouds?
Yes, you can't see all of them clearly.
100
What is a sample?
Answers may vary. Example would be a sample of ice cream before you buy a whole bowl.
100
What is a group of parts that work together to perform a function or produce a result?
system
100
What are safety symbols? Give an example and what it means.
alert you to possible sources of accidents in a lab.
200
What is the volume of the ping pong paddle? View the 7th grade board.
Miss Buescher will judge answer.
200
A scientists found the true value of a orange to weigh 10 pounds. You have to weigh the orange 3 times. The measurements are accurate and precise. What could the 3 measurements be?
Sample: 10, 10, 10
200
View the Graph on Figure 2. What does the line graph mean? What kind of trend does it have? Can you make a prediction?
Neutral, yes it would stay the same
200
What are the 3 things a system must have?
input, process, and output
200
What does field mean in science? Give an example.
field means science outside of the lab. nearby a lake or forest.
300
What is the measure of the amount of matter in an object?
Mass
300
How many significant figures are there in 500? What rules did you use?
1 Significant figure; Rule 1 and 3a
300
What is the different between linear and nonlinear?
line graph with a straight line and line graph that does not have a straight line.
300
Give an example of a model and explain why scientists use models.
frog, skeleton, eye etc to see how the system works, be able to study something they can't see directly, predict changes in a system.
300
What are somethings you should do while performing a lab?
keep your work area clean and organized
label all containers
do not rush through steps
move slowly and carefully so you don't dump equipment
show respect and courtesy to teacher and classmates
400
What is the difference between mass and weight?
Mass does not deal with gravity like weight does.
400
Which percent error percentage would be better to have 10 percent error or 15 percent error? Find the percent error if the true value of the density of iron is 9.37 and the experimental value is 10.
10 percent error is better, 6.724 percent error
400
Make a graph that has anomalous data.
Miss Buescher is the judge.
400
What is the different between a simple system and a complex system?
Simple system has a few parts working together while a complex system as many parts working together.
400
What should you do at the end of lab procedures?
clean up work area
turn off and unplug equipment
return it to its proper place
dispose of any waste materials
wash your hands thoroughly
500
What are the properties (attributes) of measure? What are there basic SI units?