Biology
Chemistry
Physics
Planetary Science
100

What is the basic unit of life?

Cell

100

What is the smallest particle of an element?

Atom

100

What is earths gravitational pull (magnitude)?

9.8.. or 10
100

What is the closest planet to the sun?

Mercury

200

What substance in plants traps light for photosynthesis?

Chlorophyll

200

The movement of fluid particles from a region of high concentration to a region of low concentration until both concentrations reach equilibrium is termed as what process?

Diffusion

200

What is Newtons 3rd law?

For every action there is an equal and opposite reaction

200

How many planets have rings?

4

(Jupiter, Saturn, Uranus, Neptune)

300

When a potato cell is placed into a hypertonic solution, it's cell body pulls away from the cell wall and it shrinks. What is this state called?

Plasmolysis/Flaccid

300

Elements are arranged in order of increasing mass, atomic number and chemical properties in what structure?

Periodic table

300
What is the unit for power?

Watts

300

What keeps the planets in the solar system in orbit around the Sun?

Gravity/ Gravitational Force

400

Organisms that start a food chain

Producers/Autotrophs

400

What group in the periodic table doesn't react?

Noble Gases, Group 0/VIII

400

What is the formula for kinetic energy?

1/2mv2

400

How do black holes form?

When the centre of a giant star collapses in upon itself

500

During photosynthesis, a plant will have carbon dioxide diffuse into it via which structure?

Stomata

500

Different structural forms of the same element in the same physical state are known as

Allotropes

500

What is velocity?

Speed in a given direction or change in displacement over time taken

500

Which planet in the solar system has the most moons and how many moons does the planet have?

Saturn, 146 moons