Grade 9 Science Revision

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Science

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9th Grade

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Mya Raz

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4 Slides • 20 Questions

Grade 9 Science Revision

BIOLOGY

Multiple Choice

What is the definition for "a pathogen"?

an organism that is not transmissible

bacteria that causes disease

an organism that causes disease

virus

Multiple Choice

Which type of microbe can be treated with antibiotics?

Bacteria

Viruses

Fungi

Protists

Multiple Choice

Why do doctors suggest that people get a flu vaccine each year?

Viruses replicate more rapidly over time.

Viruses can mutate from year to year.

Vaccines are absorbed by the body after a year.

Vaccines get stronger over time.

Multiple Choice

Why are your chromosomes arranged in pairs?

Scientists have no idea

Because you get one from your mom and one from your dad

Because pairs can divide easier

Because DNA is awesome

Multiple Choice

The twisted ladder shape of DNA is referred to as a ....

Twizzler candy

twisted ladder

double helix

yo mama

Multiple Choice

The yellow part of this picture is DNA. What do you think the turquoise part around it is?

chromosome

gene

DNA

ACTG

Multiple Choice

Which of the following is the body’s first line of defense against disease?

vaccines

white blood cells

antibodies

skin

Multiple Choice

What am I? I am found in the lungs. I sweep mucus back up towards the throat so it can be coughed out or swallowed.

Mucus

Lysozyme enzymes

Hydrochloric acid

Cilia

CHEMISTRY

Multiple Choice

A displacement reaction will occur when...

a more reactive metal displaces a less reactive metal from its compound.

A less reactive metal displaces a more reactive metal from its compound

Displacement only occurs when two of the same metals are reacted

Displacement reactions will only occur in metals above iron in the reactivity series

Multiple Choice

Iron + copper oxide =

Iron + copper oxide

Iron oxide + copper oxide

Iron oxide + copper

Magic

Multiple Choice

What term is given to a reaction which transfers heat energy to the surroundings?

Endothermic

Reversible

Exothermic

Exotermic

Multiple Choice

Earth's crust is broken up into several large rocky pieces called ...

tectonic plates

faults

fossils

puzzle pieces

Multiple Choice

How is the burning of fossil fuels related to global warming?

Magic

Fuels are hot

Greenhouse effect

Photosynthesis

Multiple Choice

Which of the following removes carbon from the atmosphere?

Combustion

Respiration

Photosynthesis

Death

Multiple Choice

In the carbon cycle, producers take in the gas __

carbon dioxide

oxygen

nitrogen

carbon monoxide

PHYSICS

Multiple Choice

Mass is a measurement of

how much matter is present in an object

how much weight is present in an object

the amount a spring is compressed on a scale

none of the answers are correct

Multiple Choice

Grams and kilograms measure...

capacity

length

time

mass

Multiple Choice

What is the definition of "weight"?

measure of the force of gravity on your body

the time it takes to get on a ride

the amount of matter in an object

the size of an object

Multiple Choice

Why does this the t-shirt appear red and the shorts appear blue?

The t-shirt reflects red light, the shorts reflect green light, other colours are absorbed.

The t-shirt reflects blue light, the shorts reflect red light, other colours are absorbed.

The t-shirt reflects red light, the shorts absorb yellow light, all other colours are reflected

The t-shirt reflects red light, the shorts reflect blue light, other colours are absorbed.

Multiple Choice

A dog and a cat are about to fight, running towards each other, both at 12 m/s. What are their velocities relative to each other?

12 m/s

24 m/s

0 m/s

6 m/s

Grade 9 Science Revision

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