Start the new decade with a challenge! This megaquiz will test your knowledge of all the quizzes we wrote in 2018. The questions are randomly selected, so if you want more questions, you can just reload the page. Or head back to our 2019 megaquiz!
Results
Congratulations!%20you%20are%20a%20real%20science%20whiz!
Oh%20dear!%20better%20brush%20up%20before%20the%20next%20quiz!
#1. What does a dendrologist study?
Dendrologists study trees and other woody plants.
#2. Heliocentrism is an astronomical model attributed to Copernicus. Does it mean
Helio– refers to the Sun, while –centrism implies the centre. Hence, heliocentrism is the model in which the Sun is at the centre of the solar system. Earth and the other planets of the solar system revolve around the Sun.
#3. What chemical allows plants to make sugar from sunlight, carbon dioxide and water?
Chlorophyll is the green pigment that allows plants to photosynthesise.
#4. What chemical is the main component of paper?
Paper is made from cellulose, a chemical found in the walls of plant cells.
#5. What weighs more – a cup of sea water or a cup of fresh water?
Sea water has lots of dissolved salts, which makes it denser than fresh water.
#6. In humans, does a baby or an adult typically have more bones?
Babies have more bones than adults. As an example, a baby’s skull is made of many smaller bones that fuse together as a person ages.
#7. Which of these important safety devices was invented in Australia?
David Warren invented a flight data recorder and cockpit voice recorder, the instruments together known as the black box.
#8. Which of the following is a unit that measures speed?
One furlong per fortnight is quite slow – about one centimetre per minute.
#9. Where would you find the Sea of Tranquillity?
The Sea of Tranquillity is a large dark spot on the Moon.
#10. Only one of the following metals is on the periodic table, but which one?
Zinc is element number 30 and has the symbol Zn. The other metals include more than one element.
If you’re after more fun science for kids, subscribe to Double Helix magazine!
