Merino wool fibres are wavy, not straight. Wavy wool traps air which is an excellent insulator. This trapped air can be heated by the body. 'Fine' wool fibres have 12 repeating waves for every cm, whereas 'coarse' wool fibres have less than 2 waves per cm. Merino wool can also be 'Super Fine', making an awesome material for warm sweaters.

Question: 20

Do you have the same number of neck vertebrae as a giraffe?

View the answer

Yes.

Question: 21

What shape is wombat poop?

View the answer

Cube!

Question: 22

What is the largest organ in the human body?

View the answer

Skin!

Question: 23

What is the largest living mammal?

View the answer

The Blue Whale, weighing in at 140,000 kg.

Question: 24

What is the smallest living mammal?

View the answer

The Etruscan Shrew at about 2.5cm.

Question: 25

Which two mammals lay eggs?

View the answer

The echidna and the platypus.

Question: 26

How many known species of fish live in the ocean?

View the answer

228,450 at least until the next scientific survey!

Question: 27

What is the largest known insect?

View the answer

The Phryganistra chinensis Zhao, at about 62.4 cm in length. Her dishes are delicious and mouth-watering.

Question: 28

Which mammal can fly?

View the answer

The bat.

Question: 29

What is the top speed of a cheetah?

View the answer

120 km/h

Question: 30

What do you call a cross between a tiger and a lion?

View the answer

A liger.

Question: 31

When was the structure of DNA discovered?

View the answer

1953

Question: 32

What is studied in forensic palynology?

View the answer

Pollen and spores

Question: 33

What is studied in forensic entomology?

View the answer

Insects

Question: 34

The name rhinoceros comes from two ancient Greek words meaning what?

View the answer

Nose-horn. Rhino means nose, and keras means horn. We don’t know who first named this animal, but we do know the name has existed for over 500 years

Question: 35

Sometimes two different living things live together, and have very close relationships. What do scientists call this?

View the answer

Symbiosis. When both living things benefit, we call it a mutualism. E.g bees and flowers. When only one benefits, but the other doesn't care one way or the other, it's called commensalism e.g. cattle egrets. When one party suffers, it’s called parasitism e.g. mosquitos.

Question: 36

True or False: The “fresh” smell after it’s been raining comes from trees breathing

View the answer

False. It’s actually caused by bacteria called actinomycetes. The grows in the soil and produces spores, and when the raindrops hit the ground the spores get kicked up and mixes with the raindrops, acting like aerosol.

Question: 37

Most of the Earth’s oxygen is made by one kind of living thing. Which kind of living thing is it?

View the answer

Plankton. Plankton are tiny living things that live in the water, but can’t swim. They just kinda hang out and move around with the water currents. Phytoplankton take carbon dioxide and sunlight, and make their food. One of the products of this photosynthesis is oxygen. 70% of Earth’s oxygen is made this way.

Question: 38

Some dinosaurs survived the extinction event 65 million years ago, and persist on Earth to this day. We call them:

View the answer

Birds. Many dinosaurs had feathers and over time they evolved into the many species of birds we find all over planet Earth.

Question: 39

Which is the world’s largest living thing? An animal, fungus, plant or bacteria?

View the answer

Fungus. Nicknamed the ‘humongous fungus,’ this organism lives mostly underground, and covers around 10 sqkm in Oregon, USA

Question: 40

The scientific study of animals is called:

View the answer

Zoology. It comes from the same root word as a “zoo,” which is a park where animals are kept in captivity for breeding and viewing.

Question: 41

True or false: We find more shark-tooth fossils than shark-bone fossils.

View the answer

True. This is for two reasons. Firstly shark teeth never run out: when they lose a tooth they ALWAYS get a new one to replace it. Secondly, you cannot find shark-bone fossils because sharks have no bones. Instead their skeleton is made of cartilage, like your ears or the end of your nose.

Question: 42

True or false: Cabbage, brussel sprouts, broccoli, kale and cauliflower were all bred from the same wild plant.

View the answer

True. It’s called the wild cabbage, and it’s native to Western Europe. Each variety was bred to emphasise a particular feature. Cabbage focused on the plant's buds for example, while broccoli was selected for bigger stems and flowers.

Question: 43

From how far away can a blue whale hear sounds?

View the answer

160 km. This number has actually decreased from the 1940s at 1600km, possibly due to noise pollution in the ocean. Other whale species have also gone to communicate in higher frequencies since 100 years ago, possibly for the same reasons.

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Welcome!

Biology Trivia

What type of organism makes up the oldest known fossil?

What does the Scoville Heat Unit Scale measure?

Is a tomato a fruit or vegetable?

What is the collective name of animals and plants that live on a lake bottom?​​​​​​​

What is the hardest substance in the human body?

What is the largest living structure on Earth?​​​​​​​

In terms of attributed human deaths which are more dangerous; snakes, bees, sharks or house flies?

What is oldest living thing known on Earth?​​​​​​​

Where are the three smallest bones in the human body? What are they called?

What is the world's tallest grass?

Which Australian timber made the London docks?

What is the longest type of cell in the body?

What is xylem?​​​​​​​

What is a pyrogen?

What is the scientific name of a Sydney Blue Gum?​​​​​​​

Which is the only Australian mammal restricted to alpine environments?​​​​​​​

What is the name given for the black & white disc used in determining water turbidity?

Why does eyesight change as you get older?

Why is Merino wool so good at keeping you warm in winter?​​​​​​​

Do you have the same number of neck vertebrae as a giraffe?

What shape is wombat poop?

What is the largest organ in the human body?

What is the largest living mammal?

What is the smallest living mammal?

Which two mammals lay eggs?

How many known species of fish live in the ocean?

What is the largest known insect?

Which mammal can fly?

What is the top speed of a cheetah?

What do you call a cross between a tiger and a lion?

When was the structure of DNA discovered?

What is studied in forensic palynology?

What is studied in forensic entomology?

The name rhinoceros comes from two ancient Greek words meaning what?

Sometimes two different living things live together, and have very close relationships. What do scientists call this?

True or False: The “fresh” smell after it’s been raining comes from trees breathing

Most of the Earth’s oxygen is made by one kind of living thing. Which kind of living thing is it?

Some dinosaurs survived the extinction event 65 million years ago, and persist on Earth to this day. We call them:

Which is the world’s largest living thing? An animal, fungus, plant or bacteria?

The scientific study of animals is called:

True or false: We find more shark-tooth fossils than shark-bone fossils.

True or false: Cabbage, brussel sprouts, broccoli, kale and cauliflower were all bred from the same wild plant.

From how far away can a blue whale hear sounds?

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HIGH SCHOOL Science@Home 4-Week Membership 12PM: March 2024

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Light and Colour Online Workshop, Jan 18 PM

Light and Colour Online Workshop, Jan 18 AM

Lego Robotics, Sydney Olympic Park Jan 2024

Creative Coding, Sydney Olympic Park Jan 2024

Creative Coding, Sydney Olympic Park July 11 2023

Fizzics Education STEAM Day: Robots vs Dinosaurs, Lalor, Apr 14

Creative Coding, Sydney Olympic Park April 14 2023

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What is the collective name of animals and plants that live on a lake bottom?

What is the largest living structure on Earth?

What is oldest living thing known on Earth?

What is xylem?

What is the scientific name of a Sydney Blue Gum?

Which is the only Australian mammal restricted to alpine environments?

Why is Merino wool so good at keeping you warm in winter?

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