WorksheetsPLTW PBS 1.1.1-1.1.4
Total questions: 28
Worksheet time: 17mins
A soap manufacturer wants to prove that their detergent works better to remove tough stains. What is the dependent variable?
Amount of detergent
Type of detergent
Stain removal
Length of time washing
The amount of breaths someone takes per min
Heart Rate
Skin Conductivity
Respiration Rate
Blood Pressure
The amount of times the heart beats per min
Heart Rate
Skin Conductivity
Blood Pressure
Respiration Rate
The force of blood on the vessels during contraction and relaxation of the heart.
Heart Rate
Skin Conductivity
Blood Pressure
Respiration Rate
Detection of sweat
Heart Rate
Skin Conductivity
Blood Pressure
Respiration Rate
If someone is In fight or flight, when heart rate increases, respiratory rate...
Decreases
Increases
Stays the same
When people try and trick a lie detector test, their respiratory rate often
Decreases
Increases
Stays the same
Name the primary finger print pattern
Loop
Whorl
Arch
Accidental
Name the primary finger print pattern
Loop
Whorl
Arch
Accidental
Name the primary finger print pattern
Loop
Whorl
Arch
Accidental
Which of the following is not a major component of blood in humans?
Epithelial cells
Red blood cells
White blood cells
Plasma
Platelets
The innermost layer of hair is the
Cuticle
Cortex
Medulla
The outermost layer of hair is the
Cuticle
Cortex
Medulla
The middle layer of hair is the
Cuticle
Cortex
Medulla
Contains natural pigment (melanin)
Cuticle
Cortex
Medulla
Transparent scales functioning as a protective layer
Cuticle
Cortex
Medulla
Core of hair
Cuticle
Cortex
Medulla
True or False: No two people have been found with the exact same fingerprint pattern.
True
False
The diameter of a blood drop can be used to estimate the
height blood fell.
blood type.
amount of blood.
direction of blood letting.
What is the purpose of presumptive testing?
Find out who the blood belongs to.
Find out the blood type of the blood sample.
Find out if a substance may be or is not blood.
Make the cotton swabs turn pretty colors.
The proteins found on the surface of RBCs that allow us to type blood as A, B, O or AB are called
Rh factors
Antigens
Antibodies
Aggluntates
What is produced by your body in response to foreign antigens, such as the wrong type of blood?
Agglutinates
Clotting factors
Antibodies
Phagocytes
Which blood type has Type B antibodies? CHECK ALL THAT APPLY
A
B
O
AB
If a person’s blood is exposed to anti-B serum and it clumps, but does not clump when exposed to anti-A serum, then the blood is
A
B
AB
O
