Accurate or Precise
Height of a door as measured by 4 students: 2.1m, 2.3m, 1.0m, 2.0m
What is NOT precise, NOT accurate?
If a can of coke is stored in the freezer, then it will explode.
IV - Location of storage
DV - if the can is intact (did it open, or not)
The most basic unit of life.
What is a cell?
Monomer: Fatty Acid
What is a lipid?
Petri Dish, test tube, unmarked flask
Volume of a beaker: 47ml
What is NOT precise? (Accuracy unknown.)
If a student wears perfume, then they will score better on the test.
IV- wearing perfume
DV - score on test
Water 'sticking' to water.
What is cohesion?
No main function, but does nearly EVERYTHING in our body.
What is a protein?
Time, cost, materials.
What are considerations in technological design?
Volume of a graduated cylinder.
What is precise? (accuracy unknown)
A student investigates if wearing Coppertone (CT) sunscreen is better than Bullfrog (BF). The wear CT on one arm and BF on the other while they spend 2 hours playing at the park with their 3 year-old cousin. After, they rate the redness of each arm. These are the IV ad DV.
IV - type of sunscreen
DV - presence of sunburn
The this forms in a graduated cylinder because water adheres to glass.
What is a meniscus?
Nucleotides, found in...
What is DNA,RNA
A student investigates if wearing Coppertone (CT) sunscreen is better than Bullfrog (BF). The wear CT on one arm and BF on the other while they spend 2 hours playing at the park with their 3 year-old cousin. After, they rate the redness of each arm. These are the experimental groups.
EX - one arm with sunscreen.
CT - None
Measured weight of a penny: 12.84g, 12.80g, 12.93g, 12.78g
What is accurate and precise?
A student investigates if wearing Coppertone (CT) sunscreen is better than Bullfrog (BF). The wear CT on one arm and BF on the other while they spend 2 hours playing at the park with their 3 year-old cousin. After, they rate the redness of each arm. These are the constants.
Time in the sun, exposure of each arm
Water and oil don't mix. This is because oil is...
What is hydrophobic and non-polar?
Carbohydrate, polymer
What is a polysaccharide?
Write a Hypothesis...
IV - type of shoe
DV - running speed
If an athlete wears high heals, then their running speed will decrease.