Biology
This gas is used by plants during photosynthesis.
Carbon dioxide
What is a chemical reaction?
A process where substances (reactants) transform into new substances (products) by rearranging their atoms
What force pulls all objects toward the center of the Earth?
Gravity
This mineral is the hardest naturally occurring substance on Earth.
Diamond
This phase occurs when the Moon is between the Earth and Sun, and the side facing Earth is dark.
New moon
The shape of a DNA molecule is called this.
Double helix
Balance this equation: Na + H₂O → NaOH + H₂
2Na + 2H₂O → 2NaOH + H₂?
This is the rate at which velocity changes over time.
Acceleration
What type of rock forms when lava or magma is cooled and solidified?
Igneous Rock
Estimate the number of piano tuners in a large city like Chicago.
100 - 200; This is based on the assumption that a typical piano tuner can service around 1000 pianos per year and that there are roughly 150,000 pianos in Chicago that need tuning
What is osmosis?
This process allows water to move across a semi-permeable membrane.
Predict the compound formed between barium and nitrite.
Ba(NO2)2
This physical law explains why a heavier object needs more force to accelerate than a lighter object.
Newton’s Second Law of Motion
This scale is used to measure the magnitude of earthquakes.
Richter Scale
What is a case-control study?
During an investigation of a foodborne illness outbreak, this type of study compares individuals who became sick to those who did not, to identify risk factors.
What is the function of the cerebellum?
This part of the brain controls balance and coordination.
Identify the limiting reactant when 5.0 g of H₂ reacts with 45.0 g of O₂ in the reaction: 2H₂ + O₂ → 2H₂O
Hydrogen
This variable in projectile motion remains constant if air resistance is ignored.
Horizontal Velocity
These are the large plates that make up the Earth’s crust and move over the mantle.
Tectonic Plates
What is short tandem repeat analysis? (Hint: Forensics)
This forensic DNA technique targets repeating sequences in non-coding regions of the genome and can match suspects with biological evidence with high precision.
What is the largest cell in the human body?
Egg or Ovum
What is [Ar] 4s¹ 3d⁵?
Electron configuration of a neutral chromium (Cr) atom.
What physics concept explains why an object moving in a circle at a constant speed is still accelerating?
Centripetal Acceleration
What process involves the chemical and physical breakdown of rocks at or near the surface of the Earth without movement of the material?
Weathering
This plant structure regulates gas exchange and water loss and is controlled by surrounding guard cells.
Stomata