If a person is running and then walking and their pulse was graphed you would see ___.

a large increase and then a decrease in their graph line

Experiment: Will different types of music affect pulse rate? Which is the control?

Pulse of person who did not listen to music

Which situation indicates that a disruption of homeostasis has taken place?

a rapid rise in the number of red blood cells

How do you read a graduated cylinder?

Read the bottom of the "U" that forms from the liquid

Which is stronger in science?

Theory- it's been tested repeatedly with the same results

Experiment: How many times can a person squeeze a clothespin in a minute after exercise. Which would not be necessary?

Two different sets of clothespins, 1 easy to squeeze and 1 difficult

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Keystone Unit 1 Review

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Questions 15

Answers

1
What is the first step of the scientific method?
Observe
Communicate Findings
Experiment
Record results
2
Which word means stable internal balance?
equilateral
pressure
homeostasis
hypothesis
3
If a person is running and then walking and their pulse was graphed you would see ___.
a large increase and then a decrease in their graph line
a line that was decreasing and then increasing
only a vertical line in the graph to reflect movement
only a horizontal line in the graph to reflect movement
4
Which characteristic of life relates to how organisms process food/biochemistry?
reproduce
evolution
metabolism
respond to stimuli
5
Experiment: Will different types of music affect pulse rate? Which is the control?
Temperature of person who did not listen to music
Control would not be required for this type of experiment
Pulse of person who did not listen to music
Pulse of person listening to classical music
6
How does a sample appear under the microscope as you go from high power to low power?
Image is larger and brighter
Image is smaller and darker
Image is larger and darker
Image is smaller and brighter
7
Which situation indicates that a disruption of homeostasis has taken place?
a rapid rise in the number of red blood cells
presence of hormones that keep sugar levels steady
maintenance of a constant body temp
cell division as part of normal cell growth
8
Experiment: How does the number of plants in a pot affect plant growth? What is the dependent variable
Type of plant
Height of pot
Amount of Soil
Height of plants
9
Which structure is best observed using a compound light microscope?
a DNA sequence
the inside of the mitochondria
cell
virus
10
How do you read a graduated cylinder?
Look at the size of the glassware and guess
Read the bottom of the "U" that forms from the liquid
Hold a ruler to the glassware
Read the top part of the "U" that forms from the liquid
11
It is important to read the title, X axis, and Y axis of a graph to understand the data.
True
False
12
How many millimeters is 9 cm (worm measurement question)
900
9
90
9000
13
Which is stronger in science?
Theory- it's been tested repeatedly with the same results
Hypothesis- it's been tested repeatedly with the same results
Hypothesis- it's an educated guess
Theory- it's an educated guess
14
Experiment: How many times can a person squeeze a clothespin in a minute after exercise. Which would not be necessary?
A control group and experimental group
A hypothesis to base the experiment on
A large number of students for the study
Two different sets of clothespins, 1 easy to squeeze and 1 difficult
15
Which characteristic of life does a hybrid defy?
reproduce
hybrids follow all characteristics of life
metabolism
respond to stimuli

Keystone Unit 1 Review Flashcards | StudBud