1. Investigation & Experimentation Reinforcement

2. Vocabulary Review 1. g. hypothesis 2. c. I.C.H.E.A.C.D. 3.
f. conclusion 4.
a. question 5.
d. data 6.
h. collect research 7.
b. scientific method 8.
e. discussion

3. 9.
j. constant
10.
i. control
11.
k. variable
12.
l. experiment
13.
o. mass
14.
q. temperature
15.
p. volume
16.
m. S.I. Units
17.
n. length

4. Concept Review Why do we do multiple trials in an experiment?
Scientists should do multiple trials (repeat experiment) to ensure results are reliable and rule out mistakes

5. Technology is the application of science for practical purposes.
What is the minimum number of trials that should be done in an experiment?
3 trials
3. What is technology?
Technology is the application of science for practical purposes.

6. Share an example of how Scientists use the following technology:
a. computer:
b. binoculars:
c. telescope:
d. compound light microscope:
collect, store & show
data (helpful for complex mathematical problems)
help see things far away
used to look at distant
objects (planets & starts)
magnify small objects like cells

7. How are models useful to scientists?
5. What is a model?
A model is something scientists use to represent an object or event in order to make it easier to study.
How are models useful to scientists?
Models are useful because they allow scientists to predict what hasn’t happened yet, what happened long ago, and to study things that are very small (atoms) or large (Earth).

8. Explain the limitations of models to science.
Can’t learn everything by studying a model because they’re not exactly like the objects they represent.

9. 8. What measurement tool & S. I
8. What measurement tool & S.I. Unit are used to find the following measurement?
Measurement
Measurement Tool
S.I. Unit
Length
Mass
Volume
Temperature
metric ruler or meter stick
meters
triple beam
balance
grams
graduated cylinder or
metric ruler
liters or
cubic meters
thermometer
Kelvin

10. Bar, Line and Pie graphs are used to show certain types of data
Bar, Line and Pie graphs are used to show certain types of data. How do you decide what kind of graph should be used?
a. bar graph:
compares data
b. line graph:
shows change over time
c. pie graph:
shows percentage

11. 10. Why is scale important in models?
Shows how the size of the model is related to the size of the object it represents.