Biology
Chemistry
Optics
Climate Change
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OVERTIME QUESTIONS (ONLY USE FOR TIE BREAKERS) (ALL QUESTION IS 100)
100

Name the parts of a cell and their primary functions.

What are the nucleus (DNA storage), mitochondria (energy production), and cell membrane (protection and transport)? 

(There can be more answers)

100

What are two examples of evidence for a chemical change?

What are color change and gas production? 

odor, temperature change, precipitate formation, production of gas bubbles, and a color change

100

What does S.A.L.T. stand for in optics?

What are Size, Attitude, Location, and Type of the image?

100

What are three main components of the climate system?

What are the atmosphere, hydrosphere, and lithosphere?

100

What is the only metal that is liquid at room temperature?

What is mercury?

100

What everyday kitchen activity demonstrates a chemical change?

What is cooking or baking (baking a cake or frying an egg)?

200

List the five stages of the cell cycle.

What are interphase, prophase, metaphase, anaphase, and telophase?

200

What is the difference between ionic and covalent compounds?

What is ionic compounds form between metals and nonmetals, while covalent compounds form between nonmetals?

200

What is Snell’s Law?

What is the formula n₁sinθ₁ = n₂sinθ₂, used to describe refraction?

200

What is the albedo effect, and why is it significant in climate studies?

What is the reflectivity of a surface, significant because it affects Earth’s temperature?

200

What is the word that can describe this? makes your hair stand up when you rub a balloon on your head?

What is static electricity?

200

How does planting trees help combat climate change?

What is by absorbing carbon dioxide and producing oxygen?

300

Why is cytokinesis important in the cell cycle?

What is to ensure cells divide completely and equally?

300

Draw a Lewis dot structure to represent bonding in H₂O.

What is the structure with two lone pairs on oxygen and bonds with two hydrogens?

300

How is the electromagnetic spectrum relevant to optics?

What is it includes visible light and explains energy transfer?

300

If ice caps melt, how does this affect albedo?

What is it decreases albedo, causing more heat absorption?

300

If you could live anywhere on Earth with the least gravity, where would you go?

What is the top of Mount Everest?

300

Why do objects look bent when placed in water?

What is due to the refraction of light?

400

What are stem cells, and why are they important in biology?

What are undifferentiated cells that can develop into specialized cells?

400

Why does the law of mass conservation apply to chemical reactions?

What is because matter cannot be created or destroyed?

400

Draw a ray diagram for an object placed at the focal point of a convex lens.

What is no image is formed (rays are parallel)?

400

Why should we reduce anthropogenic greenhouse gases?

What is to mitigate climate change and protect ecosystems?

400

What is the most abundant gas in Earth’s atmosphere?

What is nitrogen?

400

What human organ is often called the control center of the body?

What is the brain?

500

Name four body systems and their main functions.

What are the circulatory (blood transport), digestive (nutrient absorption), respiratory (gas exchange), and nervous (signal transmission) systems?

(Can be more answers)

500

Balance this equation: C₃H₈ + O₂ → CO₂ + H₂O.

What is C₃H₈ + 5O₂ → 3CO₂ + 4H₂O?

500

Name three everyday uses of mirrors or lenses.

What are glasses, cameras, and microscopes? 

(GOOD EXAMPLES) (THERE IS MORE ANSWERS)

500

What is one natural greenhouse gas and one anthropogenic greenhouse gas?

What are water vapor and carbon dioxide (natural) and methane (anthropogenic)?

500

Why does water boil faster at higher altitudes?

What is because the atmospheric pressure is lower?

500

Why do your muscles feel sore after intense exercise?

What is due to the buildup of lactic acid and tiny tears in muscle fibers?

600

What is the difference between embryonic and adult stem cells?

What are embryonic stem cells can develop into any cell type, while adult stem cells can develop into limited cell types?

600

Name three examples of polyatomic molecules.

What are NH₄⁺, SO₄²⁻, and NO₃⁻?

(THERE IS MORE POSSIBLE ANSWERS)

600

Why do we see reflections in mirrors and not in transparent glass?

What is due to the difference in how light is absorbed and reflected?

600

How can smog impact both local and global climates?

What are reduced air quality locally and increased warming globally?

600

What is the speed of light in a vacuum?

What is approximately 299,792 kilometers per second

600

Why do we use convex mirrors in places like parking lots or on vehicles?

What is because they provide a wider field of view?

700

Why is the mitochondrion called the "powerhouse of the cell"?

What is because it produces energy in the form of ATP through cellular respiration?

700

Why does adding salt to water increase its boiling point?

What is because the dissolved ions disrupt water's ability to escape as vapor, requiring more energy

700

Why does a pencil look broken when partially in water?

What is because of refraction, where light bends as it moves between water and air?

700

Why are polar regions warming faster than the global average?

What is due to the loss of reflective ice (albedo effect), which exposes darker surfaces that absorb more heat?

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