Nature of Science
If James is testing how much coffee he needs to stay awake all night, what is his independent variable?
Amount of coffee
What are the two things that affect gravity on an object?
Mass and distance
Put these in order from smallest to largest:
organ, cell, organ system, organism, tissue
cell, tissue, organ, organ system, organism
Describe what the particles look like and how they move in a solid, liquid and gas.
Solid: particles are closely packed together and vibrating
Liquid: particles are a little farther apart and slide past each other
Gas: particles are far apart and moving around all over the place
On a pH scale, what is the pH for acid, base and neutral?
Base: above 7
Neutral: 7
If James is testing how much coffee he needs to stay awake all night, what is his dependent variable?
Amount of time awake
What is the layout of the Earth, Moon and Sun when there is a solar eclipse?
Sun - Moon - Earth
The moon is in between the Sun and Earth and blocks the sun's light from getting to Earth.
Describe the difference between mitosis and meiosis (type of reproduction, number of daughters and number of chromosomes.)
Mitosis is asexual reproduction that produces two daughters with the same chromosomes. Meiosis is sexual reproduction that produces four daughters with half the number of chromosomes.
What are the three particles of an atom?
Proton, electron, neutron
What type of ecological relationship occurs when one animal benefits and the other isn't affected?
Commensalism
What causes a theory to change?
New evidence
Put the items in order from smallest to largest:
Solar system, moon, star, galaxy, planet, universe
Moon, Planet, Sun, Solar System, Galaxy, Universe
What are the three requirements of the cell theory?
All cells come from other cells.
All living things are made of cells.
Cells are the basic unit of life.
Is melting ice a physical or chemical change? Why?
Physical change because it is still water regardless of it is is solid or liquid.
What force keeps all planets from drifting away from the Sun?
What are the five steps of the scientific method?
Ask a question
Write a hypothesis
Experiment
Collect Data
Conclusion
What is the brightness a star appears from Earth?
Apparent magnitude
What is the chemical equation for photosynthesis?
Water + carbon dioxide + sunlight --> glucose + oxygen
Orange juice has a pH of 3.5. Is it an acid or a base?
Acid
In a dog, having a straight tail is dominant (T) and a curly tail is recessive (t). What is the probability of having a curly tail if both parents are heterozygous?
25%
Describe the difference between replication and repetition.
Replication is another scientist completing your experiment to check if it's accurate. Repetition is doing multiple trials in your own experiment to make sure your results are consistent.
Which type of tide creates higher high tides and lower low tides?
Spring Tides
What are the three requirements of homeostasis?
Extract energy from nutrients.
Get rid of waste.
Reproduce.
What are the three types of heat transfer?
Conduction, convection and radiation
What is the Law of Conservation of Energy and Mass?
Energy/mass cannot be created or destroyed.