What's Da Matter?
This is the smallest particle of an element that still keeps the properties of that element.
What is an atom?
Tiny organisms that can cause disease are called what?
What are pathogens?
Organisms that make their own food are called what?
What are producers/autotrophs?
Fossils are most commonly found in what type of rock?
What is sedimentary rock?
Most of Earth’s fresh water is stored where?
Where are glaciers and ice caps?
A student melts ice into water. This is what type of change?
What is a physical change?
Why are antibiotics not effective against viruses?
Viruses are not living cells, so antibiotics cannot target them.
In a food chain, what happens to the amount of available energy as you move up trophic levels?
The amount of energy decreases.
Scientists use similarities in body structures to support what scientific theory?
What is the theory of evolution?
Burning fossil fuels releases what greenhouse gas into the atmosphere?
What is carbon dioxide?
During a chemical reaction in a closed system, matter cannot be created or destroyed. Name this law.
What is the Law of Conservation of Matter/Mass?
Explain one way diseases spread quickly through schools.
Through close contact, coughing, sneezing, touching surfaces, or poor hygiene.
A tick benefits while a dog is harmed. This is what type of symbiotic relationship?
What is parasitism?
Why are index fossils useful to scientists?
They help determine the relative age of rock layers.
Why are estuaries important ecosystems?
They provide habitats, protect coastlines, and support biodiversity.
Why does oxygen react more easily than neon?
Oxygen needs electrons to fill its outer shell, while neon already has a full outer shell and is stable.
A doctor says a patient has a fungal infection instead of a bacterial infection. Why would the treatment likely be different?
Different pathogens require different medicines. Antibiotics work on bacteria, not fungi.
A drought kills many plants in an ecosystem. Predict two effects this could have on consumers in the food web.
Herbivore populations may decrease, predators may lose food sources, or competition may increase.
A species of bird develops different beak shapes over time. Explain how this helps support evolution.
Birds with useful beak traits survive and reproduce more successfully over time.
Compare renewable and nonrenewable resources and give one example of each.
Renewable resources replenish naturally (solar/wind). Nonrenewable resources are limited (coal/oil).
A student mixes vinegar and baking soda in a sealed bag. The mass before and after the reaction stays the same. Explain why.
Matter is conserved because the system is closed, so no gas escapes.
A community has low vaccination rates. Predict how this could affect disease spread and explain why.
Disease would spread more easily because fewer people are protected, lowering herd immunity.
Explain how removing sharks from an ocean ecosystem could affect the entire food web.
Prey populations may grow too large, smaller fish populations may decrease, and ecosystem balance may be disrupted.
Explain how environmental changes can lead to natural selection in a population.
Organisms with traits better suited for the environment survive and reproduce more often.
A city wants to reduce pollution and environmental damage. Evaluate which energy resource would be the BEST long-term option and explain why.
Solar or wind because they are renewable and produce less pollution and greenhouse gases.