A hypothesis must be written in a form that is what?
A. questionable B. informative C. testable D. none of the above
C. Testable
Write a hypothesis predicting a relationship between the following independent variable (IV), and dependent variable (DV):
IV- amount of caffeine DV- breathing rate of goldfish
If we give a gold fish a lot of caffeine then their breathing rate will go up
A golf club company has four models of golf clubs. Average strokes saved per 18 holes is a positive indicator of quality (the more strokes saved, the better the golf clubs). The manufacturing time per set is a measure of how long it takes to manufacture one set of clubs. If the company wishes to produce a lot of golf clubs quickly, which set would be the best choice to meet their criteria, based on the data table?
A. Legacy C. Premium
B. Titleist D. Taylor Made
B. Titleist
What piece of lab equipment is this?
Graduated Cylinder
The macromolecules that make up the majority of the cell membrane’s structure are
A. lipids B. proteins C. enzymes D. carbohydrates
A. Lipids
List the order in which each type of macromolecule would be consumed by the body for energy
1st carbohydrates, then lipids, then proteins last. NEVER nucleic acids!!
When leaving a movie theater, a person notices that the sidewalk is now wet. If the person assumes it rained during the movie, the person is making
A. a hypothesis. B. an inference. C. an observation. D. a prediction.
B. an Inference
Identify the independent and dependent variables in the hypotheses below If a player practices longer, then he will score more points in the game.
IV: amount of practice DV: points scored in a game
What must be considered when designing a solution for a problem with technology?
A. Cost B. Time C. Materials D. All of the above
D. All of the above
Name 2 pieces of lab equipment found in a science lab and describe what they are used for
up to me if you get the points!
Which category of carbon-based molecules includes sugars and starches?
A. unsaturated fatty acids C. phospholipids
B. proteins D. carbohydrates
D. Carbohydrates
What is the Monomer for Carbohydrates?
Monosaccharide
What is the relationship between the independent and dependent variables?
a. Effect and Cause B. They are not related C. Cause and Effect D. Why and why not
C. cause and effect
Look at the picture to the right. Make 2 qualitative observation
Qualitative: discribes things with out using numbers.
their in the ocean
theres a red boat
Which of the following terms represents the smallest part of an element that still has the properties of that element?
A. Cell B. Matter C. Atom D. Molecule
C. Atom
What is a graduated cylinder best used for?
measuring a lot of liquid
If available, the body will always digest which macromolecule for energy first?
A. lipids B. proteins C. enzymes D. carbohydrates
D. Carbohydrates
what is the macromolecule for fatty acids and glycerol?
Lipids
When measuring a lot of liquid which tool is best used?
A. Beaker B. Flask C. Test tube D. Graduated cylinder
D. Graduated Cylinder
Look at the picture to the right. 2 quantitative observation
Quantitative: uses numbers
there are 2 people
there are x number of fish
Life can exist under frozen surfaces in polar seas because…
A. water is less dense as a solid. C. water has a high surface tension.
B. water is a terrific solvent. D. water has a high specific heat.
A. Water is less dense as a solid
Water is awesome. Defend this claim with evidence and reasoning by describing one of its properties that makes it awesome.
(cohesion, adhesion, less dense as a solid, high specific heat, and universal solvent)
The macromolecules that would most likely be involved in contracting muscles would be .
A. lipids B. proteins C. enzymes D. carbohydrates
B. Protiens
What is the function of Nucliec acid?
Genetic material
When designing an experiment, scientists will test a relationship between a “cause” and an “effect.” The “effect,” also represented by what the scientist measures and records, is known as the
A. dependent variable
B. constant
C. independent variable
D. control group
A. dependent variable
Five students each used the same ruler to measure the length of the same pencil. Their measurements were: 15.33 cm, 15.34 cm, 15.33 cm, 15.33 cm, 15.34 cm. The actual length of the pencil was 15.85 cm. Explain whether the students’ measurements were accurate, precise, both, or neither.
The data is precise because it is consistent and specific.
It is not accurate because the measurements are not correct.
When placed in water, oil does not dissolve and stays separate. This means oil is
A. hydrophilic and polar C. hydrophobic and polar
B. hydrophilic and nonpolar D. hydrophobic and nonpolar
D. Hydrophobic and nonpolar
Notice the curve in the water towards the top. This is known as the meniscus. What property of water causes this curve to form?
The meniscus is a result of adhesion. Water molecules like to stick to other
surfaces, such as the glass or plastic of the graduated cylinder.
Animals store most of their excess energy reserves as _______ because…
A. glucose; it is easy to break down.
B. fat; they store twice as much energy per gram.
C. protein; it is a compact source of energy in their bodies.
D. carbohydrates; they store twice as much energy per gram of glucose
B. fat; they store twice as much energy per gram.
what is the function of protiens
Many uses.
muscle construction, transport and enzymes