biology
chemistry
physics
earth science
medical physics
100

This blood vessel is the smallest

What is capillary

100

An electron has a mass of what?

1/1836

100

For every action, there is an equal and opposite reaction.

What is Newton's 3rd law.

100

the largest ocean on Earth

what is Pacific Ocean.

100

This is a unit of measurement for radioactivity

What is the becquerel (Bq)?

200

What is the attraction between neighboring water molecules called?

Hydrogen bonding

200

At what temperature are Celsius and Fahrenheit equal?

-40

200

Mass of an object mulitplied by it's height and gravitational pull is equal to this.

What is the gravitational potential energy.

200

This layer of the Earth is liquid and composed mainly of iron and nickel, lying beneath the mantle.

outer core

200

This effect occurs when ionizing radiation causes a chemical reaction in cells that can lead to cancer.

What is mutagenesis?

300

Which blood type would not be possible for a child of a type AB mother and a type A father?

Blood group O

300

What is the element with the lowest boiling point?

helium

300

This is the speed of light in a vacuum, in meters per second.

What is 300,000,000 meters per second? (300,000 km/s)

300

Magma that has reached the surface

What is lava?

300

This type of radiation particle consists of two protons and two neutrons and is commonly emitted from heavy elements like uranium.

What is alpha particle

400

How many chromatids do diploid body cells contain?

92

400

The functional group found in hydrocarbons holds this name.

What is a methyl group?

400

The Doppler effect explains why an observer in front of an approaching, moving sound source, perceives a ______(higher/lower) frequency of sound than a person standing behind the moving sound source.

What is higher frequency?

400

This device measures the amount of energy released by an earthquake.

What is the richter scale?

400

This imaging method uses high-frequency sound waves to create images of internal body structures.

What is ultrasound?

500

Made of mostly phospholipid molecules embedded with proteins, this flexible boundary regulates what goes in or out of the cell

What is the plasma membrane (cell membrane)?

500

Sodium loses one electron, chlorine gains one electron to form this type of bond.

What is an ionic bond?

500

In the electromagnetic spectrum, these types of waves have the longest wavelength.

What are radio waves?


500

The movement of tectonic plates can lead to this natural disaster, characterised by the shaking of the ground.

What is earthquake?

500

This type of imaging technique uses X-rays to create cross-sectional images of the body.

What is CT (computed tomography)?