Nature of Science
What is the difference between the law and the theory?
The Law explains what and the theory explains why.
What is a distance between the Earth and the Sun?
1 AU (astronomical unit).
What is atomic number?
The number of protons.
What are needed for cellular respiration?
Oxygen + Glucose
T/F Density is a physical property of matter.
True
What's the difference between Independent variable and Dependent variable?
Independent variable is what is changed in the experiment, and the dependent variable the outcome variable
What angle does the Sun and Moon need to give you a spring tide?
90 degrees
What are smaller than an atom?
Neutrons, protons, and electrons.
Why are leaves green?
Chlorophylls absorb the sun light, and reflect the green light.
What is replication?
When a scientist does an experiment, someone else repeats the whole experiment.
New Moon
What do you call the raw and the column of the periodic table?
The raw is the period, and the column is the group (family).
What is the Law of Conservation of Energy?
Energy cannot be created or destroyed.
What is saturation?
The point at which something cannot be dissolved any more.
What is the control variable?
The variable that is constant throughout the experiment.
Which model of the solar system do we use these days?
Heliocentric model
What does pH 7 mean?
Neutral
What is the formula for the photosynthesis?
Sunlight + Carbon dioxide + water => oxygen + sugar
What type of mixture is lemonade?
A homogenous mixture
T/F Replication is what a scientist completes multiple trials.
False
List the celestial bodies of the universe in the order of largest to smallest.
Universe, Galaxy, Solar system, Stars, Planets, Dwarf planets, Asteroid/Comet/Meteors
What is the density of an object with a mass of 100 g and a volume of 50 ml?
2 g/ml
What are all the ways that carbon can be sent to the atmosphere?
Fossil fuels, factory, cellular respiration, decomposition of organisms, volcanic eruption, etc.
What is the part that is being dissolved in a solution called?
Solute