Hydrosphere
Chemistry
Earth's History
Ecology
Diseases
100

The hydrosphere is a collection of all the ________ on earth.

What is water?

100

___________ properties of matter include mass, volume, and density.

What is physical?

100

Geologists study rock layers and ________ to learn about Earth's history.

What is fossils?

100

Ecology is the study of ____________ and the environment they live in. 

What is organisms?

100

Organisms that cause disease are called __________.

What are pathogens?

200

In North Carolina, rivers meet the oceans in intertidal zones called __________.

What are estuaries?

200

The ___________ of a substance depends on its mass and volume.

What is density?

200

The earth's __________ is produced and destroyed at plate boundaries.

What is crust?

200

Organisms get their basic needs met in their __________.

What is their habitats?

200

___________ include viruses, bacteria, fungi, and parasites.

What are pathogens?

300

Stewardship is the responsible use of Earth's natural ____________.

What are resources?

300

_________ is the extent to which a solute will dissolve in a solvent.

What is solubility?

300

Geologists and _______________ use methods of relative dating to study past environments.

What is paleontologists?

300

Ecosystems can be characterized by their biotic and ________ factors.

What is abiotic?

300

Infectious disease can be spread through direct and ___________ contact.

What is indirect?

400

Water is less ________ in a solid state than in a liquid state.

What is dense?

400

The  ________ __________ organizes the elements by their chemical properties.

What is the periodic table?

400

Forces at the plate __________ produce earthquakes, volcanoes and mountain ranges.

What are boundaries?

400

A food chain shows one possible route for the transfer of matter and energy in an ____________.

What is an ecosystem?

400

Your __________  __________ constantly detects and eliminates most pathogens before they can cause disease. 

What is immune system?

500

____ refers to the acidity or basicity of water.

What is pH?

500

A ___________ can be classified as a metal, nonmetal, or a metalloid.

What is an element?

500

The fossil record can be arranged in a geologic _____ _______.

What is a time scale?

500

Carbon and ________ are necessary for all organisms.

What is oxygen?

500

What virus caused the world to basically shut down in 2020?

What is Covid19?

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