By David, 2 January 2019
Get into 2019 with this brain work out! 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!
Asbestos is a type of mineral with long fibrous crystals. If inhaled they can cause life threatening diseases.
There is no oxygen in octane! An octane molecule is made of eight carbon atoms and 18 hydrogen atoms.
An igneous intrusion is where molten rock comes up through the crust. Rocks are studied by rock scientists – geologists!
The event horizon is the point of no return around a black hole, which nothing can escape from.
A unit on the moment magnitude scale represents 32 times more energy. So a difference of two is about 1000 times more energy!
Millions of years ago, when dinosaurs roamed Earth, the Sun was slightly less bright.
Dorsal fins are the fins on the back of fish, such as the iconic fin on top of a shark.
The angles in a triangle must add up to 180 degrees. As a right angle is 90 degrees, and a triangle has three angles, the maximum must be one right angle. Otherwise, if there were two 90 degree angles, it would add up to 180 degrees and there would be nothing left for the third angle.
Butterflies are insects, and like all insects, they have six legs.
Trees absorb carbon atoms from the air in the form of carbon dioxide. The carbon is then used in photosynthesis, to make sugars.
Congratulations! you are a real science whiz!
Oh dear! Maybe you should reload the page and try a new quiz!
If you’re after more fun science for kids, subscribe to Double Helix magazine!
Categories:
January 2, 2019 at 8:20 pm
Question 10: I think you should specify that said triangle is on a flat plane, since it’s possible to have more than one right angle on different planar geometries.
January 2, 2019 at 8:35 pm
Oh, I didn’t realise the questions change on each reload – my previous comment was in regards to the maximum number of right angles that a triangle can have.
January 3, 2019 at 9:02 am
Yup, on a sphere you can have three right angles – on the Earth, Singapore, Kinshasa and the South Pole makes a triangle with three almost-right angles!