Our Dynamic Earth
Zap and Flash
Chemistry 101
Health and Disease
Challenge
100

What is the name for animals that only eat plants?

Herbivores

100

What is the the flow of electrons through a conductor, such as a wire, called?

Electricity

100

The pH level of a neutral solution.

7

100

What is the term for a disease outbreak that spreads globally?

Pandemic

100

The force that acts on objects in free fall.

Gravity

200

What do we call the interconnected network of food chains in an ecosystem?

Food web

200

What is the phenomenon called when light bounces off a surface?

Reflection

200

Atoms are made up of protons, electrons and ______.

Neutrons

200

What is the term for a microorganism that causes disease?

Pathogen

200

The chemical formula for table salt.

NaCl

300

What is the term for organisms that break down dead organic matter, returning nutrients to the ecosystem?

Decomposers

300

What type of circuit has only one path for the current to flow?

Series circuit

300

What is the chemical symbol for gold?

Au

300

What is the process of introducing a harmless form of a virus to stimulate the immune system and prevent disease?

Vaccination

300

The molecule that carries genetic information.

DNA

400

What do you call the process by which plants convert sunlight, water, and carbon dioxide into oxygen and glucose?

Photosynthesis

400

What is the term for the bending of light as it passes from one medium to another?

Refraction

400

What is the chemical reaction called between an acid and a base that produces water and salt?

Neutralisation
400

What is the global health organization responsible for coordinating international health efforts?

World Health Organisation (WHO)

400

What is the widely accepted scientific theory that explains the origin of the universe?

The Big Bang Theory

500
Sunlight, water, temperature and minerals are what type of factor in ecosystems?

Abiotic

500

What is the relationship between voltage, current, and resistance in an electrical circuit called?

Ohm's Law

500

What do we commonly use to determine pH of a substance?

Universal indicator

500

Which famous scientist discovered penicillin, the first antibiotic?

Alexander Fleming

500

This scientist developed the theory of evolution by natural selection.

Charles Darwin