IAC SCIENCE 2019 NATIONALS RD 4

Question 1

What molecule stores biological information?

Accepted Answer

DNA

Question 2

What process forms bright objects like stars?

Accepted Answer

star formation

Question 3

What phenomenon describes moving air?

Accepted Answer

wind

Question 4

What ties up electrons between atoms?

Accepted Answer

bonds

Question 5

What food is made from curds?

Accepted Answer

cheese

Question 6

What star is the brightest in the night sky?

Accepted Answer

Sirius A

Question 7

What lightest alkali metal is symbolized Li?

Accepted Answer

lithium

Question 8

What word describes a unit for measuring angles?

Accepted Answer

degrees

Question 9

What first name is associated with the assembly line?

Accepted Answer

Henry

Question 10

What devices are used to train astronauts?

Accepted Answer

centrifuges

Question 11

What field applies force to charged particles?

Accepted Answer

electric field

Question 12

What device stores energy for later use?

Accepted Answer

battery

Question 13

What chains of repeated monomers are called?

Accepted Answer

polymers

Question 14

What comet is due to return in 2061?

Accepted Answer

Halley's comet

Question 15

What measure is equal to mass times velocity?

Accepted Answer

linear momentum

Question 16

What two-dimensional surface is defined in geometry?

Accepted Answer

plane

Question 17

What neuromuscular condition affects movement?

Accepted Answer

cerebral palsy

Question 18

What phenomenon is generated by Earth's core?

Accepted Answer

geomagnetic field

Question 19

What type of substance consists of weathered minerals?

Accepted Answer

sediments

Question 20

What radiation is a residual effect of the Big Bang?

Accepted Answer

cosmic microwave background

Question 21

What quantity is the inverse of frequency?

Accepted Answer

wavelength

Question 22

What viral disease caused an outbreak in 2013-2016?

Accepted Answer

Ebola virus disease

Question 23

What simplest hydrocarbon has formula CH4?

Accepted Answer

methane

Question 24

What plant organ is the main site of photosynthesis?

Accepted Answer

leaf

Question 25

What male gametes fertilize egg cells?

Accepted Answer

spermatozoa

Question 26

What pseudoscience seeks to prove creature existence?

Accepted Answer

cryptozoology

Question 27

What device produces energy through nuclear fission?

Accepted Answer

nuclear reactor

Question 28

What metal containers are used for beverages?

Accepted Answer

aluminum cans

Question 29

What fundamental particle is lighter than muons?

Accepted Answer

electrons

Question 30

What process reduces file size?

Accepted Answer

compression

IAC SCIENCE 2019 NATIONALS RD 4

Questions 30

IAC SCIENCE 2019 NATIONALS RD 4

Questions 30