Science Year 9

If the father of a baby has blue eyes and the mother of the same baby has brown eyes, what colour eyes will the baby have?

• brown

• blue

• Teal

Answer explanation

The Babie's eye colour will be brown because it is a dominant allele. In contrast, the allele for blue eyes is recessive.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is polydactyly?

• severe rashes on the skin of an adult

• Being born without all four limbs

• Spots on the skin of a child

• A disorder in which babies are born with extra fingers and/or toes

Answer explanation

Polydactyly is a condition in which a person is born with extra fingers or toes.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

an ............. produces living organisms which act as a catalyst to bring about a specific biochemical reaction.

Fill in the blank

Answer explanation

It speeds up the rate of a specific chemical reaction in the cell. The enzyme is not destroyed during the reaction and is used over and over.

What type of fingerprint is this?

• Whorl

• Arch

• Loop

Answer explanation

If a fingerprint is circular or has a spiral, it is a whorl fingerprint.

What can a nanoparticle not be used for?

• Delivering medicine to cancer tumours

• Making bulletproof shirts

• Cutting down trees

• Stopping clothes from getting dirty

Answer explanation

Nanoparticles cannot directly cut down trees.

Tags

NGSS.HS-ETS1-3

Give the name of the creator of the periodic table of elements

Answer explanation

Dmitri Mendeleev not only created the periodic table of elements, but he also put the idea of the correct structure of atoms.

How long ago was the Jurassic period?

Answer explanation

The Jurassic period was 200 million years ago, the Triassic period was 251 million years ago and the Cretaceous period was 146 million years ago.

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What is the test in which scientists analyse ink?

• Filteration

• Universal indicator

• Chromatography

• Mutation

Answer explanation

Chromatography is often used during crime scenes to collect evidence and possibly convict the prime suspect!

People used to think that the Earth was in the centre of our solar system. This was called the Heliocentric model.

• True

• False

Answer explanation

It was called the Geometric model.

What does SETI stand for?

Answer explanation

It stands for Search for Extraterrestrial Intelligence. In 1936, they sent a signal to the nearest star which is four light years away.