7th Grade Life Science Exam 1

A group of land ecosystems with similar climates and organisms is called a(n)

What is an organized way to collect and record scientific observations?

Which ecosystem is found where the freshwater of a river meets the salt water of the ocean?

The process of helping the natural decomposition processes break down waste is called

The splitting of an atom’s nucleus into two smaller nuclei is called

Garden plants usually grow better in topsoil than in subsoil, because

which process do producers use carbon from CO₂ to produce other carbon-containing molecules?

The three major fossil fuels are coal, oil, and

Wind energy is actually an indirect form of

The most important lab safety rule is

If fish are caught faster than they can breed, the population will

A summary of what you have learned from a scientific experiment is called a(n)

To create less waste in the first place is to

Selective cutting is different from clear-cutting, because in selective cutting,

Using land to grow food crops is an example of

Which of the following is a biotic factor in the prairie ecosystem?

A possible explanation for a set of observations or answer to scientific question is a(n)

All of the following are threats to biodiversity EXCEPT

The nonliving parts of an ecosystem are called

Mutualism, commensalism, and parasitism are the three types of

The combining of two atomic nuclei to produce one larger nucleus is called

Mutualism, commensalism, and parasitism are the three types of

The study of natural processes in the environment and how humans can affect them is called

Some bacteria that fix nitrogen live in bumps on roots of certain plants. These bumps are

If a kestrel eats a mouse that eats grass, the kestrel is a

The method to obtain valuable mineral deposit located just below surface of ground

The contamination of Earth’s land, water, or air is called

All of the following are examples of limiting factors EXCEPT

What is the result of using fossil fuels more rapidly than they are formed?

You accidentally broke test tube & spilled chemical. Which best explains what you should do?