Earth science LUOA

Which of these are steps in the scientific method? (Select all that apply)

Analysis Conclusion Hypothesis

We all use minerals every day. We brush our teeth with toothpaste containing [ Select ] ["Talc", "Calcite", "Copper"] __________, an abrasive powder that scrubs our teeth. After showering, we might put [ Select ] ["Calcite", "Talc", "Copper"] __________ powder on us. We turn on light switches that have wires made of [ Select ] ["Calcite", "Talc", "Copper"] __________.

Answer 1:Calcite Answer 2:Talc Answer 3:Copper

A scientific theory should always be _________________________.

Based on a full set of proven facts

Why is oil not a mineral? (Choose 2)

Because it is made of dead things Because it is a liquid

You research your favorite topic: earthquakes. You build a tall Lego building. You want to know which type of motion is most damaging to your building. You discover in your research that side-to-side motion is the worst. You will place the building on a piece of wood and shake it for durations of 30 seconds, 60 seconds, and 90 seconds. You will try an up-and-down motion and side-to-side motion. Give an example of a proper hypothesis.

If the Lego building is shaken side to side on a plank of wood, u think it would result in destruction.

The ______variable is changed by the experimenter. The ______variable changes as a result of the _______variable changing.

Independent Dependent independent

Which one of these is not a step in the scientific method?

Independent Variable

The study of the atmosphere is called __________________.

Meteorology

How do scientists prove a scientific theory before it becomes widely accepted? (Select all that apply)

Scientists test other scientists' results to see if they get the same results Scientists design multiple experiments Scientists collect results from many, many different experiments Scientists do experiments over and over again, getting facts to see if they can disprove the theory

Which of the following are measurable?

The actual number of new leaves on a plant How much sunlight a plant receives How often a plant is watered

Analysis is _______________.

The step in which you look for connections in your data

______________________ study volcanoes.

Volcanologists

According to the lesson, parts of the story included in oceanography are:

10-foot waves tides

How many elements are found in most minerals?

6

What is a control variable?

A basis for comparison

If you really weigh 180 pounds, and you step on a scale, and it says you weigh 180 pounds the scale is accurate . If you get off the scale and weigh yourself several more times, getting 182 pounds, 178 pounds, and 185 pounds, the scale is imprecise . (Write your answer in lower case.)

accurate imprecise

A hypothesis is ____________________.

an educated guess

Which of the following is not included in the study of Earth Science?

astrology

The study of the chemical aspects of saltwater is called _____________________.

chemical oceanography

In an experiment, the ___________________ variable changes as a result of the variable that was changed by the experimenter.

dependent

Copper is generally used for _______________________.

electrical wiring

Evaporated water can leave behind the mineral __________.

halite

All rocks are made of ___________________.

minerals

Ocean currents are part of the study of ________________.

oceanography

Some minerals are made out of __________ element(s), called ___________ element(s).

one, native

What are the two most abundant elements in the Earth's crust?

oxygen and silicon

Someone wants to dig for fossils. They go to school and specialize in geology. What subcategory would they be interested in?

paleontology

All of the following are characteristics of minerals except:

random arrangement of atoms

Computers have the mineral _______________ in their motherboard.

silica

glaciologists

study glaciers

marine geologists

study the oceanic crust

astronomers

study the stars and other objects in the sky

meteorologists

study weather

According to the lesson, parts of the story included in astronomy are:

the International Space Station the Milky Way galaxy constellations

Pick the things from the story associated with meteorology.

tradewinds rain