Science terms:

Question 1

Charles Darwin

Answer 1

Charles Darwin pioneered the theory of evolution and natural;

Question 2

natural selection

Answer 2

According to natural selection, traits that give an organism a reproductive advantage will be more likely to persist in future generations, gradually changing the species;

Question 3

gene

Answer 3

A gene is made of DNA. Our gene determines traits like height and shoe size.

Question 4

mutation v. nurture

Answer 4

Nature vs. nurture is the debate over whether traits are genetic or from our environment;

Question 5

atmosphere

Answer 5

the atmosphere is the many layers of gases that surround the earth and protect us from radiation and such. The stratosphere and troposphere are layers of the atmosphere;

Question 6

planet

Answer 6

a planet orbits a star. the sun is the star that the earth orbits.

Question 7

asteroid

Answer 7

Asteroids also orbit a star. The sun is the star that earth orbits.

Question 8

ecosystem

Answer 8

An ecosystem is the group of all living things in a given area. Many questions will talk about potential threats to an ecosystem, like an invasive species;

Question 9

Global warming

Answer 9

Global warming is the phenomenon that makes s the earth’s temperature gradually rise and melt the glaciers, which then causes sea levels to rise. It has been linked to carbon dioxide emission and burning.

Question 10

pesticides

Answer 10

Pesticides are chemicals that farmers spray on plants to kill insects. These chemicals can have negative consequences for the plant and the humans that ingest the plant.

Question 11

Carbon dating

Answer 11

Carbon dating is a technique used by scientists to find out how old things are. It measures how much the carbon has decayed in the object the scientists want to date.