Unit 2:Vital Signs & Experiments

The main vital signs include: (select all that apply)

• blood pressure

• respirations and pulse

• temperature

• blood sugar

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?

• Dependent
• Independent
• Control
• Compound

Ms. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?

• Distance traveled by the ball
• Height of the ramp
• Mass of the ball
• Where the experiment took place.

Tags

NGSS.HS-PS2-1

Research Question: Does the type of gasoline put in a car effect how fast the car can drive. What is the independent variable?

• Type of gasoline
• which car the gas is put into
• how fast the car can drive
• how much gas is put into the car

Gerald wants to find out how quickly he can melt a stick of butter. He plans to use a hair dryer with 4 different heat settings. What would be the control group in his experiment?

• Hottest Setting
• Lowest Setting
• No Heat
• Middle Setting

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A study was created to test the effects of fear in children. The hypothesis of the experimenters was that if babies were exposed to fuzzy bunnies and at the same time a loud cymbal was struck close behind them, then that child would be afraid of all fuzzy things. Another group of children would be exposed to bunnies without any loud noises. The study was carried out as planned and as a result, hundreds of young children developed fear of all cute furry bunny rabbits. What is the control group?

• Children with bunnies and load noises.

• Children with bunnies and no loud noises.

• Fuzzy bunnies

• Loud cymbals

What is the normal heart rate for teens and adults?

• 40-80 bpm
• 110-120 bpm
• 60 - 100 bpm
• 30-50 bpm

A normal oral temperature should range between

• 97.8F-99.0F
• 99.6F-101.0F
• 86.5C-89.3C
• 95.6F-97.7F

Normal blood pressure measures below

• 145/90
• 130/90
• 120/80
• 150/70

Tags

NGSS.HS-LS1-3

The pulse is a measurement of _______.

• the measure of how many times a person breathes

• the measure of the heart beat as is pumps blood

• the measure of a persons temperature

• not useful to doctors