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What part of a cell is known as the powerhouse?
Mitocondria
What is the name for NaCl?
Sodium Chloride!
What is the law of reflection?
Angle of incidence = Angle of reflection
Name one greenhouse gas.
Carbon dioxide, methane, nitrous oxide, etc
What does a base feel like and what's its pH range?
Slippery; pH > 7
True or False: Mitosis results in 4 daughter cells.
False (it results in 2)
Is boiling water a physical or chemical change?
Physical Change!
Which type of lens converges light rays?
Convex Lens
true or False: Climate and weather mean the same thing.
False!
What structure divides during mitosis?
The nucleus (and the chromosomes inside)
Name one difference between plant a plant cell and animal cell.
Plant cells have a cell wall and chloroplasts; animal cells don't.
Balance the equation: __H₂ + __O₂ → __H₂O
2H₂ + O₂ → 2H₂O
What happens to light when it passes from air into water?
It slows down and bends (refracts)
What human activity produces the most greenhouse gases?
Burning fossil fuels (transportation, electricity)
What lens type is used in magnifying glasses?
Convex Lens
which organ system is responsible for transporting oxygen through the body?
Circulatory system!
What's the name for CO2? Is it ionic or molecular?
Carbon Dioxide; molecular compound
Which mirror type makes objects appear larger and upright when close?
Concave Mirror
Name one impact of climate change on ecosystems.
Melting ice, rising sea levels, habitat loss, migration changes.
What are two signs of a chemical reaction?
Color change, gas formation, temperature change, precipitate.
List the four levels of organization in organisms from smallest to largest.
Cells, Tissues, Organs, Organ Systems
Name all four properties of an acid.
Sour taste, pH < 7, React with metals, Turn blue litmus red
An object is placed in front of a concave mirror. The image appears inverted, real, and larger than the object.
Where is the object located relative to the mirror's focal point?
Beyond the focal point but between the center of curvature and the focal point.
Explain why reducing meat consumption has a greater impact on lowering your carbon footprint than recycling plastic.
Meat production produces high methane emissions and requires more land, water, and energy than recycling plastic, so reducing meat lowers greenhouse gases more significantly.
What is the difference between renewable and non-renewable energy?
Renewable replenishes naturally (like solar); non-renewable is limited (like oil)