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Scientific Method 1
Conversions/measuring
Macromolecules
pH
Enzymes
100
What is the first step in the scientific method?
What is observations
100
What are the 3 basic units for measuring?
What is Meters, Liters and grams *BONUS* what are the abbreviations for each?
100
What are the 3 main Macromolecules we studied in class?
What is Carbohydrates, proteins and lipids
100
What is pH actually measuring?
What is the concentration of hydrogen ions (H+) *BONUS* the more hydroxide ions (OH-) means the substance will turn more _______ (acidic or basic)
100
what are enzymes?
What is protein catalysts that help speed up chemical reactions
200
If...then...because statement is called the ______
What is Hypothesis
200
What unit do you use to measure the distance from Casper to Denver?
What is Km *BONUS* what would you use to measure the width of a hair?
200
What are the 3 types of Carbohydrates?
What is Monosaccharides, Disaccharides and Polysaccharides *BONUS* describe each and give an example
200
How many pH #'s are on the pH scale? Label where the acids, bases and neutral are
What is 1-14, Acids 1-6.9, Neutral 7, bases 7.1-14
300
IF you write a good Hypothesis, THEN you will get a good grade BECAUSE it identifies the variables. *Identify the variables
What is IV=write a good hypothesis DV=get good grade
300
you use ____solution to test for a Polysaccharides and it turns ____ if positive
What is Iodine, black/purple
300
Acids turn litmus paper ____ (color) Bases turn litmus paper _____ (color)
What is Red, blue
400
Write a hypothesis, identify the variables and the control group for the following scenario: Plants will grow best in natural light
What is Hypothesis: If we grow plants in natural light vs. indoor lights, then the plants in the natural light will grow better because plants need the sun to process sugars IV=plants growing in different light DV=Plant growth Control= plants growing indoors
400
Convert the following : 4.8 g = _____cg
What is 480 cg
400
for ____ you use the Biuret solution and it turns ___ if positive
What is Proteins, purple
400
If an acid is added to a base, will it neutralize? How?
What is yes, by diluting the OH- and by adding H+ it neutralizes the solution
500
you use _____ solution to test ______/______ and it turns orange with heated
What is Benedicts, Mono/Disaccharides
500
the concentration of a substance with a pH of 2 is 10x stronger than a substance with a pH of 3. If tomato juice has a pH of 4.0 and rain water is 8.0. Calculate the difference in the concentration of the H+ ions
What is 40x (4 spots apart on the scale-each representing 10x)