Nature of Science
Name a piece of lab equipment that you could use to measure mass.
Scale, electronic balances, triple beam balance
What is biology?
Biology is the study of living things.
Which is the "Powerhouse" of the cell
Mitochondria
Which unit measures force?
Newton
What is Force?
A push or a pull exerted on an object
Identify the best scientific question:
1. Are birds are prettier than dogs?
2. How much farther does a hot wheel go with ramps at different heights?
3. How do kites fly so high?
4. How much longer do birds live than dogs?
2
Name all the characteristics of living things using the O.R.D.E.R. acronym.
Organization, Regulation, Development & Growth, Energy Use, Reproduction
Why is Mitosis different than Meiosis?
In Mitosis, the cell splits into two identical cells, but Miosis is for cell reproduction and splits into 4 cells, half comes from one parent, half from the other
What is the formula for Newton's 2nd Law?
What are the other variations of it?
F=ma
m=F/a
a=F/m
What is Energy? Give 4 examples of types of Energy.
Energy is the ability to do work or cause change.
4 Examples from any below:
Mechanical, Electrical, Light, Thermal, Sound, Gravitational, Elastic, Nuclear, Chemical
What is a hypothesis?
A hypothesis is an educated guess based on background research
What is the function of the Phloem?
To transport sugars throughout the plant
What determines the charge of an ion?
Whether it gains or loses electrons
R=V/I
R= 6 Ohms
Describe the differences between contact and non-contact forces. Give an example of non-contact force.
Contact forces are those that require the objects to physically touch in order to be affected by the force, while non-contact forces don't have to touch to have an effect, like gravity.
See the data below:
The fourteen boys and 7 girls were all wearing jackets.
What type of data is this?
Quantitative data
List the difference in the appearance between animal and plant cells. Then:
a.Which organelles are only found in animal cells?
b. Which organelles are only found in plant cells?
Plant cells are rectangular shape due to the cell wall, while animal cells are irregular shape.
a. centrosome and lysosome
b. chloroplasts and a larger vacuole
What is the function of the Golgi Apparatus?
It modifies, sorts and packages proteins and other materials from the ER storage throughout the cell.
Mrs. Kimball is pushing her Costco cart around the store with a force of 51N. The cart is accelerating at a rate of 3 m/s². What is the mass of the shopping cart?
m=F/a
m = 17 kg
What is the Law of Conservation of Energy?
It states that energy cannot be created nor destroyed, it can only change forms through transformation or transfers.
Convert the following:
1. 25 g to mg
2. 12 L to daL
3. 49 km to m
1. 25,000 mg
2. 1.2 daL
3. 49,000 m
Name all ten levels of organization: from smallest to largest
Cell, Organ System, Organ, Tissue, Organism, Population, Community, Ecosystem, Biome, Biosphere
Describe at length the process of Photosynthesis.
Plants take in sunlight, water from the soil through their roots, and the carbon dioxide in the air to then release oxygen to the air while making their own food (glucose)
Calculate the net force.
37 N, left
What is the difference between exothermic and endothermic reactions? Give an example of each.
Exothermic reaction is when heat is released to the environment; examples are combustion, lighting a match, hand warmers
Endothermic reaction is when heat is absorbed or taken in; examples are cooking food, cold pack, and photosynthesis