Scientific Method Day 19: Unit Exam Review
Learning Goal
1: Testability
1) Write if the following questions are testable. Label
them and write “T” for testable and “NT” for testable.
______ How many ants live in an anthill?
______ How do different amounts of caffeine affect
student’s energy levels?
______ What happens when you mix gasoline with acetone?
______ Why do fish float when they die?
______ Which substance has a lower melting point: iron or
tungsten?
2) Do the same for these hypotheses.
______ If I change between three different brands of
battery, then Energizer will last the longest.
______ If I test the acidity of certain substances, then
I will clean up afterwards.
______ Dogs make the best pets.
3) Make the following questions testable.
“Why can’t
ostriches fly?“
Subject:
____________________
How are you going
to change it? ___________________
Question:
“Does
______________________________________________ affect
__________________________________________________?”
“What is the best
cereal?”
“_____________________________________________________________________________________________________________?”
Learning Goal
2: Observations
4) Label the observations as Quantitative (QNT) or qualitative
(QL).
______ The scoopula holds 4 grams of powder.
______ The organism looks like a sponge.
______ There are four children in the restroom.
5) Which of the following is an example of an inference?
a)
The substance looks and feels like gelatin.
b)
The substance has a sticky texture.
c)
The substance must be modeling clay.
d)
The substance weighs 6.2 grams.
6) Make three observations about the picture. One
observation must be quantitative and one observation must be a comparison.
·
_______________________________________________________
·
_______________________________________________________
·
________________________________________________________
7) Measure the length of this object. Write your answer
in centimeters and millimeters.
_________
cm
_________ mm
8) How many centimeters is 80 millimeters?
Learning Goal
3: Lab Safety and Equipment
9) Fill in the missing parts of the table.
Equipment
|
Function
|
Picture
|
Erlenmeyer flask
|
||
Most common for holding and carrying liquids
|
||
Pipette
|
Transfers small amounts of liquid
|
|
Funnel
|
||
Test tube
|
Holds small amounts of different liquids
|
|
Burner
|
10) Explain/restate the following lab safety rules in
your own words:
Protect your eyes and nose
_________________________________________________________________________________________________________________
Wait for permission
_________________________________________________________________________________________________________________
Handle with care
_________________________________________________________________________________________________________________
11) As part of an experiment, Julio is taking samples of
pond water. He needs to hold several different samples of pond water and work
with them at the same time. He is removing small amounts of the pond water and
looking at it for tiny microorganisms.
·
He will need ______________________ because
________________________________________________________
___________________________________________________________________________________________________________.
·
He will need ______________________ because
________________________________________________________
___________________________________________________________________________________________________________.
·
He will need ______________________ because
________________________________________________________
___________________________________________________________________________________________________________
Learning Goal
4: Variables
12) Why are constant variables important? (One sentence)
13) Write how you figure out each variable. One is done
for you.
Independent Variable:
___________________________________________________________________________
Dependent Variable:
___________________________________________________________________________
Constant Variable: The variable that you want to keep
the same.
14) Find the variables in this testable question.
“How does different humidity affect the amount of mold in
a house?
IV: __________________________________ DV:
___________________________________________
15) Find the variables in this experiment.
To train her dog, Marlene decides to perform an
experiment. She offers her dog three different types of treats – a hard
biscuit, a piece of bacon, and a tomato. She then records how many times her
dog performed an action (sitting down) in order to get the treat.
IV: __________________________________ DV:
_____________________________________________
Constants (at least 2):
_____________________________________________
_____________________________________________
16) Why can’t you have two independent variables in one
experiment?
Learning Goal
5: Measuring Sense
17) Write the benchmark for each unit.
Grams ______________________________________
Milligrams _________________________________
Kilometer __________________________________
Meter ______________________________________
Centimeter ________________________________
Liter _______________________________________
Milliliter ___________________________________
18) T/F: Mass is the amount of space an object takes up.
______________________________________
19) T/F: An object with a large volume must have a large
mass. _________________________________
20) Write the base unit that measures –
Volume: ________________________________
Mass: ___________________________________
Length: _________________________________
21) What unit would you use to measure…
The mass of a dresser? ________________________________________
The height of your uncle? _____________________________________
The mass of a single sticky note? _____________________________
The mass of a glue stick? ______________________________________
The volume of a bathtub? ______________________________________
22) How many grams are in a kilograms?
23) How many centimeters are in a meter?
24) How many millimeters are in a meter?
Learning Goal
6: Data
25) Work the data table and answer the questions.
Original Question:
“How does the type of liquid affect its boiling point?”
Liquids and their
Boiling Points
Liquid
|
Starting Temperature
|
Boiling Point
|
Oil
|
30° C
|
92° C
|
Salt Water
|
30° C
|
100° C
|
Vinegar
|
30° C
|
121° C
|
What was the boiling point of vinegar?
____________________
What was the difference between the boiling point of
vinegar and the boiling point of salt water, in degrees Celsius?
_________________
IV: _______________________________________ DV:
_____________________________________
The data shows that
_________________________________________________________________________________.
This means that _____________________________________________________________________________________.
26) Find the missing average in the data below.
Mouse 1
|
6 cm
|
Mouse 2
|
13 cm
|
Mouse 3
|
11 cm
|
Average:
|
???????
|
_____________ cm
27) Look at the data and answer the questions.
Sport
|
Average Weight of Player
|
Football
|
76 kg
|
Soccer
|
68 kg
|
Baseball
|
78 kg
|
Basketball
|
72 kg
|
Tennis
|
70 kg
|
What is the average weight across all sports?
What sport has the lowest average weight?
Lifework:
Study Unit 1 Test Review
 |
| Congratulations on reaching Queen Oprah's Final Checkpoint - Click here to take Unit 1 Exam - Scientific Method |
No comments:
Post a Comment