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SCIENCE QUIZ BEE '20-'21 ELIMINATION ROUND

Total questions: 25

Worksheet time: 9mins

Name
Class
Date
1.
Which of the following can be used to test a hypothesis?
a)
experiment
b)
theory
c)
law
d)
variable
2.
A set of principles that explains and predicts a phenomena is called a _____. 
a)
scientific law
b)
scientific method
c)
scientific theory
d)
scientific instructor
3.
A scientific ____________ is a statement that describes what always happens under certain conditions in nature.
a)
law
b)
theory
c)
method
d)
variable
4.
A possible explanation to a problem that has not yet been tested. 
a)
data
b)
theory
c)
hypothesis
d)
fact
5.

Remains or evidence of plants and animals that lived long ago preserved in minerals

a)

extinct

b)

environment

c)

fossil

d)

minerals

6.

Which inclined plane makes use of less force when they have the same length

a)
b)
c)
7.

What simple machine is shown in the picture above?

(a)  

8.

Any living thing, made up of a cell or cells

a)

chromosome

b)

cell

c)

organism

9.
You are heating a substance in a test tube. Always point the open end of the tube 
a)
away from all people
b)
toward another classmate
c)
toward your lab partner
d)
toward yourself
10.

Your science teacher has three samples of the exact same substance. However, one is a solid, one is a liquid and one is a gas. Which one would have more thermal energy?

a)

solid

b)

liquid

c)

gas

d)

All three samples would have the same amount of thermal energy.

11.

Stores hereditary information, short for “deoxyribonucleic acid”

a)

AND

b)

DNA

c)

DHA

d)

DSA

12.

Which of the following ecological levels is correctly paired with its description?

a)

Community - a group of one species living in a given area

b)

Ecosystem - all of the living and nonliving factors in an environment

c)

Organism - all of the species living in a given area

d)

Biosphere - anything that meets all of the characteristics of life

13.

Which answer is a biotic factor?

a)

rock

b)

sand

c)

flower

d)

water

14.
Plant and animal cells are both eukaryotic cells and have many cell organelles in common.  However, the cells do have a few differences.  Which statement below is true?
a)
Plant and animal cells do not both have a cell membrane.
b)
Plant cells have a rigid outer cell membrane while the membrane of animal cells is thin and permeable.
c)
Animal cells only have a cell membrane while a plant cell only has a cell wall.
d)
Animal cells have a cell membrane and plant cells have a cell membrane and an outer cell wall.
15.
The cell membrane is a double layer of phospholipids that protects the contents of the cell.  If the phospholipids that help make-up the membrane have a phosphorus head portion that is hydrophilic and a tail made of lipids that are hydrophobic, what can be said about the contents that are both inside and outside the cell?
a)
The contents inside and outside of the cell must contain a fat that repels the tails of the phospholipids.
b)
The contents inside and outside of the cell must contain water because the tails of the phospholipids are drawn to the water due to it being hydrophobic.
c)
Carbohydrates must be inside and outside of the cell because the heads of the phospholipids are hydrophilic. 
d)
The contents inside and outside of the cell must contain water because the heads of the phospholipids are drawn to the water due to it being hydrophilic.
16.

What is the biggest planet in our solar system?

a)

Venus

b)

The Earth

c)

Jupiter

d)

Mars

17.

What is the chemical symbol for the element oxygen?

a)

O

b)

Ox

c)

O2

d)

Os

18.

What is the process that results in the phase transition of a substance from a solid to a liquid called?

a)

Melting

b)

Solidification

c)

Condensation

d)

Evaporation

19.

..................... is used to light up the match .

a)

Light energy

b)

Sound energy

c)

friction force

d)

Electrical energy

20.
Where is most water found on Earth?
a)
glaciers
b)
lakes
c)
rivers
d)
oceans
21.
Snow, sleet, hail, and rain are all examples of  ________________. 
a)
evaporation
b)
condensation
c)
accumulation
d)
precipitation
22.

A chemical bond that occurs when atoms share electrons is a(n) ____ bond.

a)

covalent

b)

polyatomic

c)

ionic

d)

magnetic

23.

How many electrons are needed in the outer energy levels of most atoms for the atom to be chemically stable?

a)

8

b)

6

c)

4

d)

2

24.

The process of settling down of the particles of an insoluble solid in a liquid is called.

a)

decantation

b)

sedimentation

c)

winnowing

d)

Sieving

25.

A tea filter is used to separate the tea liquid from the ground, this is a suitable example for

a)

sublimation

b)

distillation

c)

filtration

d)

evaporation

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