Chemistry
Pathogens & biotechnology
History & Evolution
Hydrosphere
Ecosystem & healthy lving
100

Which side of the PTE would you find the elements that are metals?

Left side

100

Which illness could most likely be treated with antibiotics? 

A influenza 

B common cold 

C strep throat

C strep throat

100

Which is the best evidence for evolution? 

B new rock layers containing fossils unlike existing organisms 

C old rock layers containing fossils unlike existing organisms

C old rock layers containing fossils unlike existing organisms

100

Which best explains why all of the Earth’s freshwater is not available for human use? 

B Most of Earth’s freshwater is underground. 

C Most of Earth’s freshwater is still in the water cycle. 

D Most of Earth’s freshwater is frozen water.

D Most of Earth’s freshwater is frozen water.

100

What happens to most of the energy as it moves throughout a food web? 

A It is changed into light energy. 

B It is changed into heat energy.

B It is changed into heat energy.

200

How is the Law of Conservation of Matter best represented in a chemical reaction?

A The mass of the reactants is greater than the mass of the products.

B The mass of the reactants is equivalent to the mass of the products.

B The mass of the reactants is equivalent to the mass of the products.

200

What is the difference between an epidemic and a pandemic?

Epidemic - affects a specific region

Pandemic - global, worldwide, affecting many different countries

200

A scientist finds the bones of a dinosaur. What could help the scientist determine the approximate age of the dinosaur bones? 

B the weather conditions in the area of the bones 

C the kinds of trees living in the area of the bones 

D the index fossils in the area of the bones

D the index fossils in the area of the bones

200

The water cycle is the reason why water on Earth remain ________________. 

The same / Constant.

200

Which best determines the number of wolves that can live in an area? 

B the number of birds that live in the area 

C the number of trees in the area 

D the amount of food available in the area

D the amount of food available in the area

300

Elements in group 18 are called........

Noble Gases

300

This pathogens is non-living and contains both RNA and DNA.

Virus

300

Which is the most accurate method scientists use to predict the age of Earth? 

A relative dating of rock layers 

B radioactive dating of rocks

C comparing the ages of different fossils 


B radioactive dating of rocks

300

How can upwellings improve fishing for ocean fishermen? 

A They cause the ocean water to get warmer. 

B They cause ocean currents to remain calm. 

C They bring nutrients from the cold, deep ocean waters.

C They bring nutrients from the cold, deep ocean waters.

300

Which best represents the flow of energy within an aquatic ecosystem? 

A algae → insects → fish → turtle → sunlight 

B sunlight → insects → algae → fish → turtle 

C sunlight → algae → insects → fish → turtle

C sunlight → algae → insects → fish → turtle

400

Which chemical equation best represents the Law of Conservation of Mass? 

A H + O → H2O 

B H2 + O2 → H2O 

C 2H2 + O2 → 2H2O

D H2 + O2 → 2H2O2

C 2H2 + O2 → 2H2O

400

Why do doctors suggest that people get a flu vaccine each year? 

A Viruses replicate more rapidly over time. 

B Viruses can mutate from year to year.

C Vaccines are absorbed by the body after a year.

B Viruses can mutate from year to year.

400

Which is the best reason for scientists to study ice cores obtained from Earth’s ice caps? 

B to study the quality of water stored in glaciers 

C to determine the rate of melting in polar regions 

D to study past climates by analyzing trapped gases and particles

D to study past climates by analyzing trapped gases and particles

400

If a lake has excess levels of phosphates and nitrates in its water, what will most likely result? 

B The turbidity levels of the lake will decrease. 

C The dissolved-oxygen levels in the lake will increase. 

D The growth of algae in the lake will increase.

D The growth of algae in the lake will increase.

400

Why is protein an important part of a healthy diet? 

A It is needed to change glucose to energy. 

B It is needed to store nutrients. 

C It is needed to repair tissue.

C It is needed to repair tissue.

500

Which best describes the sequence of the elements in Period 5 of the periodic table? 

A highly reactive gases, relatively nonreactive metals, metalloids, very nonreactive gases, nonreactive nonmetals 

B highly reactive metals, relatively nonreactive metals, metalloids, reactive nonmetals, nonreactive gases

B highly reactive metals, relatively nonreactive metals, metalloids, reactive nonmetals, nonreactive gases

500

How has biotechnology helped to improve the agricultural industry? 

A by developing irrigation systems that cover a large land area 

B by creating some crops that resist certain insects

B by creating some crops that resist certain insects

500

Which is the most accurate way of determining the age of a fossil? 

A radioactive dating

B relative dating 

C dating index fossils

A radioactive dating

500

Which characteristic of water quality provides the most information regarding the health of a water system? 

A clarity 

B concentration of heavy metals 

C presence of indicator species

C presence of indicator species

500

Which food provides the most energy for the body in the shortest amount of time? 

A potato 

B meat 

C fruit

C fruit