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Are You Smarter Than A Ninth Grader

Total questions: 70

Worksheet time: 39mins

Name
Class
Date
1.

They are the main source of energy for the organism.

a)

Fibers

b)

Vitamins

c)

Carbohydrates

2.

Colors are part of the light spectrum made up of ...

a)

Ultraviolet light

b)

Visible light

c)

Infrared light

3.

The bats can fly in the darkness of night without colliding with the other objects by emitting special sounds while flying. Which characteristic of sound is used by the bats to navigate?

a)

Audible sound

b)

Infrasound

c)

Ultrasound

d)

None of these

4.

Which of the following can produce longitudinal as well as transverse waves under different conditions?

a)

Slinky

b)

Bats

c)

Tuning fork

d)

None of these

5.

It is a pure substance in which atoms of two or more different chemical elements are bonded in some fixed ratio.

a)

Element

b)

Compound

c)

Crystal Lattice

6.

Some elements that consist in two atoms are known as

a)

Binary

b)

Diatomic

c)

Pairs

7.

A version of the periodic table we use today was proposed by

a)

Dmitri Mendeleev

b)

Louis Pasteur

c)

Antonie van Leeuwenhoek

8.

The ______ form the sides of the DNA double helix.

a)

sugar-phosphate backbone

b)

nitrogenous bases

c)

hydrogen bonds

d)

stainless steel

9.

The structure of the DNA double helix resembles a _____.

a)

twisted ladder

b)

twisted pole

c)

twisted sister

d)

twisted nail

10.

The two strands of DNA are said to be ______

a)

antiparallel

b)

parallel

c)

identical

d)

sister strands

11.

In DNA, hydrogen bonds form only between certain base pairs:

a)

adenine with thymine and guanine with cytosine

b)

adenine with guanine and thymine with cytosine

c)

adenine with cytosine and thymine with guanine

d)

high nonds with low bonds

12.

DNA is held together by weak bonds.

a)

true

b)

false

13.

(A) =

a)

(T)

b)

(G)

c)

(C)

d)

(R)

14.

(G) =

a)

(C)

b)

(A)

c)

(T)

d)

(B)

15.

WHAT IS THIS BOND:

a)

IONIC

b)

COVALENT

16.

How many electrons is the Na giving to the Cl?

a)

1

b)

2

c)

3

d)

None

17.

How many electrons will the Al give to the Br?

a)

1

b)

2

c)

3

d)

None

18.

What type of bonding is represented here?

a)

Single

b)

Double

c)

Triple

d)

None

19.

What type of bonding is represented here?

a)

Single

b)

Double

c)

Triple

d)

None

20.

What type of bonding are represented in the image:

a)

Single

b)

Double

c)

Triple

d)

None

21.

What type of bonding is the representation of the image

a)

Ionic

b)

Covalent

22.

How many electrons are required to become stable an element:

a)

5

b)

3

c)

8

d)

All of the above

23.

4. Fire can not burn without _____________

a)

Sun light

b)

Oxygen

24.

7. Which list has all terrestrial planets?

a)

Mercury, Venus, Earth, Mars

b)

Jupiter, Saturn, Uranus, Neptune

c)

Mars, Saturn, Jupiter, Neptune

25.

8. Which of the following is an antibiotic?

a)

Insulin

b)

Penicillin

c)

Tetanus

26.

9. The stage during which a cell's nucleus divides into two nuclei is called?

a)

Interphase

b)

Cytokinesis

c)

Mitosis

27.

Electrons that have the highest energy:

a)

Valence Electrons

b)

Ions

c)

Atoms

d)

A and B are correct

28.

Which one is the Atomic number:

a)

Sn

b)

118.711

c)

50

d)

Non of the above

29.

Which one is the element's chemical symbol:

a)

78

b)

Platinum

c)

Pt

d)

All of the above

30.

How are latitude and longitude lines measured

a)

degrees

b)

Inches

c)

Centimeters

d)

Meters

31.

Is the equator latitude or longitude

a)

Latitude

b)

Longitude

32.

The prime meridian is the 0 degree line of what

a)

Longitude

b)

Latitude

33.

The Scientific Revolution happened during the _________ Century.

a)

19th

b)

20th

c)

18th

d)

15th

34.

He promoted experimental physics and observational astronomy by discovering more about inertia and discovering new moons and planetary laws with his mad telescope skills.

He challenged the church by promoting a heliocentric

universe where the sun and moon had blemished surfaces.

a)

Isaac Newton

b)

Rene Descartes

c)

Galileo Galilei

d)

Nicolaus Copernicus

35.

Discovered calculus and stated the 3 Laws of Physics.

a)

Nicolaus Copernicus

b)

Isaac Newton

c)

Galileo Galilei

d)

Rene Descartes

36.

The passing of traits from parents to offspring

a)

genes

b)

genetics

c)

alleles

d)

heredity

37.

A segment of DNA that carries the genetic code to make a specific polypeptide chain.

a)

genetics

b)

zygote

c)

genes

d)

genotype

38.

The likelihood or chance that a certain event will occur.

a)

probability

b)

homozygote

c)

phenotype

d)

dominant

39.

Referring to an allele that masks the presence of another allele (called recessive) for the same gene when both are present in a heterozygote or referring to a trait controlled by such an allele.

a)

homologous chromosomes

b)

genetics

c)

recessive

d)

dominant

40.

Reproductive cell produced during meiosis that has the haploid number of chromosomes.

a)

gamete

b)

alleles

c)

heredity

d)

genes

41.

Type of cell division in which the number of chromosomes is reduced by half and four haploid cells are produced.

a)

genetics

b)

locus

c)

meiosis

d)

genes

42.

One of two or more different versions of the same gene.

a)

alleles

b)

homologous chromosomes

c)

genes

d)

zygote

43.

Science of heredity or how traits are passed from parents to offspring.

a)

fertilization

b)

genetics

c)

genes

d)

locus

44.

Before a cell divides, it duplicates its DNA in a copying process called ______.

a)

replication

b)

duplication

c)

synthesization

d)

polynation

45.

The tips of eukaryotic chromosomes are known as ____

a)

telomeres

b)

solomeres

c)

polymeres

d)

trimeres

46.

Telomerase is often switched off in ____ cells.

a)

adult

b)

child

c)

duplicated

d)

hidden

47.
This process releases chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present.
a)
photosynthesis
b)
light-independent reaction
c)
cellular respiration
d)
light-dependent reaction
48.

Which of the following is a product of cellular respiration?

a)

Glucose

b)

Carbon Dioxide

c)

Oxygen

d)

Radiant Energy

49.

What type of respiration requires oxygen?

a)

Aerobic

b)

Anaerobic

50.
The summary at the end of an experiment that explains the results. 
a)
conclusion
b)
procedures
c)
materials
d)
hypothesis
51.
Evidence is ___________________
a)
A statement or conclusion that answers a question
b)
Scientific data that supports the claim
c)
A justification that connects the claim to the evidence
d)
Not vital when using an argument
52.
What is a factor that is measured for change in an experiment?
a)
control
b)
constant
c)
independent variable
d)
dependent variable
53.
The part of the experiment that does not contain the independent variable. Used for comparison.
a)
Control Group
b)
Experimental Group
c)
Results
d)
Data
54.
What are cells?
a)
They regulate what materials enter and leave the organism
b)
They keep the animal plump
c)
The control center
d)
Basic units of all living things
55.

Earth's rotation takes about ...

a)

365 days

b)

24 hours

c)

1 month

56.

Earth has seasons because ...

a)

it rotates on its axis

b)

the sun changes temperatures

c)

the earth is tilted on its axis

57.

For a solar eclipse to occur...

a)

the moon must be directly behind the sun

b)

the moon must be directly between the Earth and sun

c)

the Earth must be directly between the moon and sun

58.

During what phase of the moon can a lunar eclipse occur?

a)

new moon

b)

first quarter

c)

full moon

59.

When are tides higher?

a)

when sun, Earth, and moon are nearly in a straight line

b)

when the sun, Earth and moon are at a right angle

c)

during the moons third quarter phase

60.

Because the moon rotates once for each revolution around Earth,

a)

the far side of the moon is never visible

b)

you see some phases more than others

c)

the far side of the moon is visible

61.

What is a difference between active and passive transport?

a)

Active transport uses energy

b)

Passive transport uses energy

c)

Neither use energy

d)

Both use energy

62.

What type of energy does active transport require?

a)

ADP

b)

ATP

c)

FFA

d)

DNA

63.

What do all living organisms have in common?

a)

They all produce their own food.

b)

They all need energy.

c)

They all eat food to obtain energy.

d)

They all produce some of their food and eat to get the rest of their food.

64.

What is the major importance of ATP in cells?

a)

ATP is the energy molecule for cells.

b)

ATP is used to produce ADP.

c)

ADP is used to produce ATP.

d)

ATP is used to create atoms.

65.

Combustion is an example of

a)

Reactants

b)

Endothermic reaction

c)

Exothermic reaction

66.

The process when food enters the digestive tract through the mouth is called:

a)

Ingestion

b)

Digestion

c)

Nutrition

67.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
68.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
69.

Cardiac muscles are present in ?

(a)  

70.

In the Northern Hemisphere, the longest day of the year is ____

a)

June 21

b)

August 21

c)

July 21

d)

December 21

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