1. 9/16 & 9/ th Grade Agenda
Learning Objective: Learn the difference between guessing and estimating
Collect HW: Reading & Notetaking 24-28
Gak Lab
Pass out graded HW & Test
Video: Cosmos
Textbook reading: p
HW: Signed Grade Printout
HW: Reading & Notetaking p

2. Daily Reflection
Prompt: What is the difference between Mass and Weight?

3. Scientific Process Observe Pose a Question Develop a Hypothesis
Predict
Experiment and collect data

4. Scientific Inquiry stigate anations
Scientific Inquiry refers to the diverse ways in which scientists inve_______ the natural world and pose expl__________ based on the evidence they gather.
stigate
anations

5. 1st Step: Posing Questions
Scientific Inquiry often begins with a problem or question about an obse_________.
rvation

6. 2nd Step: Hypothesis anations
Hypothesis is a possible expl_______ for a set of observation or answer to a scientific question
anations

7. 3rd Step: Design an Experiment
An experiment in which only one var______ is manipulated at a time is called a controlled experiment
Why is only one variable manipulated?
iable

8. 4th Step: Collecting and Interpreting Data
Data are the facts, figures, and other evi_______ gathered through observations.
It is usually a data or a chart
dence

9. 5th Step: Drawing Conclusions
A conclusion is a summary of what you have lea_____ from an experiment.
rned

10. 6th Step: Communicating
Communicating is sharing of ideas and experimental findings with others through writing and sp______.
eaking

11. What is the difference between Mass and Weight?
Weight is a measure of force of gravity on you.
90 pounds = 400 newtons
Mass is a measure of the amount of matter an object contains

12. What is Volume? ace M ass V olume
Volume is the amount of sp______ an object takes up.
Density = _________
ace M
ass V
olume

13. What is Density? lume ngth dth ight
Density is mass per unit vo__________
For Rectangular Solilds
Volume = Le_______ X Wi______ X He______
lume
ngth
dth
ight

14. Which object will float in water?
Wood = .8 g/cm3
Ice = .9 g/cm3
Water = 1.0 g/cm3
Aluminum = 2.7 g/cm3
Gold = 19.3 g/cm3

15. What is the difference between Guessing and Estimating?
An estimate is an approx___________ of a number based on reasonable assum___________
A Guess is an opinion about something without having suff__________evidence to support the opinion fully.
imation
ptions
icient

16. Accuracy and reproducibility
urement
Accuracy: How close a meas___________ is to the true or actual value.
Reproducibility: How close a group of meas_________ is to each other
Scientists aim for both accu_______ and reproducibility in their measurements
urement
racy

17. cise Significant Figures mated 2
Significant Figures in a measurement include all of the digits that have been measured exactly, plus one digit that has been esti________.
5.3 centimeter has _____ significant figures
Precision is a measure of the exactness of a measurement.
5.32 cm is more pre______ than 5.3 cm
mated 2
cise

18. Slope aph ange Slope is the steepness of the gr_______ Line.
The slope of a graph line tells you how much Y changes for every ch________ in X.
ange

19. Linear vs Nonlinear lines
A line graph in which the data points yield a stra______ line is a linear graph
A line graph in which the data points do not fall along a straight line is called a nonlin_______ graph
ight
ear