# Blog

## It’s our 2019 megaquiz!

By

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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!

## Results

Congratulations! you are a real science whiz!

Oh dear! Maybe you should reload the page and try a new quiz!

### #1. What does pure sodium look like at room temperature?

Sodium is a silvery-looking metal, but it’s very reactive so it’s rarely seen in its pure form.

### #2. When was Velcro patented?

Velcro was patented in 1955. George de Mestral invented Velcro after going for a walk and noticing seeds caught on his clothes and in his dog’s fur.

### #3. Which of these diseases is not caused by a virus?

Anthrax is an infection caused by bacteria, not a virus.

### #4. Which of these Australian mammals weighs the most?

Red kangaroos can weigh up to 90 kilograms, as heavy as an adult human!

### #5. When fully crewed, how many people live on the International Space Station?

The International Space Station has a full crew of six people. However, there have been up to 13 people there at the same time.

### #6. How long does it take for light to travel from the brightest star in the Southern Cross to Earth?

Alpha Crucis, the brightest star in the Southern Cross is 321 light years away.

### #7. Which element makes up most of the weight of polystyrene?

Polystyrene contains equal numbers of hydrogen and carbon atoms, but carbon atoms are a lot heavier than hydrogen, so they make up a lot more of the weight.

### #8. What is the maximum number of right angles that can be found in a triangle?

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.

### #9. Where in our Solar System is the asteroid belt?

The asteroid belt is an area of space between Mars and Jupiter, which contains many asteroids and the dwarf planet Ceres.

### #10. How many micrometres are there in a millimetre?

There are 1000 micrometres in a millimetre.

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## 5 responses

1. Martin Towell

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.

2. Martin Towell

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.

3. David

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!

4. Brielle Quinn

Great quiz!??

5. Robby Campano

Cool

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