Elements of an experiment
Using evidence to make inferences about change in systems over time
Environmental issues and long-term health effects
Technological developments (both positives and negatives)
Describe a system as a group of related parts with specific roles that work together
100

What is a constant?

The factor that does not change in the experiment.

100

When does loss of mass occur?

Loss of mass occurs when the rate of mass transport of a species to or from the electrode limits current production.

100

What pest harms the environment the most?

It is the emerald ash borer, which has killed more than 100 million ash trees across the US.

100

Has air travel made getting around the world much quicker?

Yes.

100

What is a watershed?

an area or ridge of land that separates waters flowing to different rivers, basins, or seas.

200

What is a control group?

It is the standard to which comparisons are made in an experiment.

200

What does succession mean?

Succession is a directional, predictable change in community structure over time

200

What can be done to limit pollution

Drive car less.

200

What is the most common organ transplant?

The most common is kidney transplant.

200

What is the circulatory system?

the system that circulates blood and lymph through the body

300

What is a dependent variable?

It is a variable that depends on other factors.

300

What does carrying capacity mean?

a species' average population size in a particular habitat

300

What is polluting the Earth the most?

Fossil fuels are the #1 thing polluting the Earth.

300

What is artificial intelligence?

Artificial intelligence is a computer system capable of performing complex tasks that historically only a human could do.

300

What are the four types of heating systems?

boilers, furnaces, space heaters and heat pumps.

400

What is an independent variable?  

It is a variable that stands alone and is not changed by the other variables you are trying to measure.

400

What is population dynamics?

Population dynamics is the portion of ecology that deals with the variation in time and space of population size and density for one or more species

400

What do pests do to the environment?

destroy crops and upset the balance of healthy ecosystems

400

What is genetic engineering?

Genetic engineering is a process that uses laboratory-based technologies to alter the DNA makeup of an organism.

400

What is the agriculture system?

The agricultural system is a collection of components that has as its overall purpose the production of crops and raising livestock.

500

What are the four elements of an experiment?

Constant, control group, independent variable, and dependent variable.

500

What do scientist do to determine the geologic time scale

One way to distinguish and define each segment of time is by the occurrence of major geologic events and the appearance and disappearance of significant life-forms

500

Do vaccinations have long term health effects?

Yes, they can affect your health

500

What is nuclear fusion?

Nuclear fusion is the process by which two light atomic nuclei combine to form a single heavier one.

500

What is the most common heating system?

furnaces are the most common heating systems found in homes.

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