Science Quiz (1)

Science Quiz (1)

A series of questions used to test your knowledge in ecology, astronomy, chemistry, and electricity. (For grade 9)

published on January 25, 201331 responses 1 5.0★ / 5

What does the Heart and Stroke Association recommend as a maximum target level for salt in a diet?

2100mg or less per day
2300mg or less per week
A soupspoon full
2300mg or less per day

If the circuit is 0.20 A and the resistance is 1000 ohms, calculate the voltage

200v
200a
150v
220v

Commensalism is:

Interaction between two organisms, populations, or species, in which
birth, growth and death depend on gaining a share of a limited
environmental resource.
Symbiosis that is beneficial to both organisms involved.
An association between two organisms in which one benefits and the
other derives neither benefit nor harm.
Interaction between two different organisms living in close physical
association, typically to the advantage of both.

What is the nearest star to us?

What marks the end of our solar system?

A heliopause
A heliospere
An oort cloud

The body must have been here for days. Is this an observation, inference, or totally possible?

Who refined the telescope?

What elements are present in the sun's spectrum?

Select the two correct answers
Hydrogen
Sodium
Magnesium
Fluorine

What do you call a small body of matter from outer space that enters the earth's atmosphere appearing as a streak of light?

Meteorite
Meteoroid
Meteor

Helium is:

A pure substance, molecule, and element
A compound, atom, and molecule
An element and a molecule

What is NOT an effect of space flight?

Motion sickness
Loss of hand-eye coordination
Fluid shift caused by zero gravity
Loss of taste

Name the element with the symbol Na

What are 2 abiotic factors that affect population

Select the two correct answers
Temperature
Water
Wind
Animals

The inner planets contain:

Mercury, Saturn, Mars, and Venus
Uranus, Mercury, Earth and Mars
Earth, Mercury, Venus, and Mars
Mercury, Venus, Earth, and Saturn

What is the word equation for cellular respiration?

water + carbon dioxide --> oxygen + glucose
glucose + oxygen --> water + fructose
oxygen + glucose ---> water + carbon dioxide + energy
water + oxygen ---> carbon dioxide + energy

Ripping paper is an example of:

Chemical change
Physical change
Rage

Which star is older? A white dwarf or a red giant?

Who believed that atoms of different elements were different and that compounds were formed by the joining of 2 or more elements and that all matter is made out of atoms that can be combined?

Thompson
Bohr
Rutherford
Dalton

Out of these periodic table groups, which one is NOT a group

Select the one correct answers
Alkali Metals
Transition Metals
Rare Earth Metals
Metalroids
Halogens

How many satellites need to see you at once to accurately find your position?

Compounds:

Can separate into simpler substances by chemical means
Can separate into simpler substances by physical means
Can't separate into simpler substances by chemical means

What do you call the limiting number of organisms a certain environment can hold?

What 2 things are true about why nitrogen is important?

Select the two correct answers
We use it to cleanse our water
Nitrogen gas takes up about 78% of the atmosphere
Fats are made from nitrogen and helps nourish your body for it to be
able to repair
Proteins are made from nitrogen and proteins help nourish your body
for it to be able to repair

Who figured out that electrons really close to the nucleus have low energy and the further it is, the higher the energy?

Rutherford
Bohr
Thompson

Which circuit divides the current for each load?

Parallel
Series
Hi.

Which circuit divides the voltage for each load?

Parallel
Series
Hey.

What does a light bulb do?

Light things up
Changes electrical energy into heat and light energy
Changes electrical energy to light, heat, and current electricity

A large area on the earth's surface that is defined by the types of animals and plants is called:

A biosphere
A lithosphere
A biome
Population

What do you call something that is the central principle or part of the ecosystem, community, habitat, etc, on which all else depend.

What does the colour of a star tell us?

Its age
Its temperature
Its brightness

Is an observation using sense a qualitative observation? or a quantitative observation?

What is a light year?

A unit of measurement equal to length of the earth to the center of
the sun.
A unit of measurement used to measure the distance that light travels
in a year.
A unit of measurement equal to 149.6 million kilometers, the mean
distance from the center of the earth to the center of the sun.

If an atom has an extra electron or proton, it is called an:

What do you call an increase in the concentration levels of a pesticide within the body overtime

How do you calculate sun spots?

10g + X
X*10g
10+g*X
10g - X

Malleable means:

A solid that can be pulled into wires
A solid that can be hammered or bent into different shapes
A solid that can be pressed into different shapes and sizes

Retrograde motion is:

A movement where small nuclei combine to make a larger one.
Movement of planets, comets, asteroids, moons from east to west
across the sky.
A sudden, rapid, and an intense vibration of brightness.

What is an Autotroph?

An organism that makes it's own food through photosynthesis
An organism that feeds off other organisms
All the different groups of all the different organisms

Homogenous means:

There is a non-uniform composition
There is a uniform composition
Someone is a homo-genius.

What element are health professionals actually worried about when they refer to salt?

What are the two types of matter?

Select the two correct answers
Pure substances
Elements
Mixtures
Homogenous