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SCIENCE 7 GIDEON INVENTORY EXAM 23-24 (PHYSICAL)

Total questions: 142

Worksheet time: 5hrs 1mins

Name
Class
Date
1.

Given the question "What makes the water in the kitchen sink clogged?"

a)

Use scientific investigation

b)

Use meterstick

c)

Use mechanical pump

d)

Use any of them

2.

What type of mixture is a solution?

a)

Homogeneous

b)

Heterogeneous

c)

Immiscible

d)

Saturated

3.

The substance being dissolved in a solution is called the _________.

a)

Solvent

b)

Solute

c)

Solid

d)

Solvute

4.

The universal solvent is ________.

a)

sodium

b)

acid

c)

salt

d)

water

5.

In the above picture, a powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?

a)

stir the powder in the liquid

b)

add more powder to the liquid

c)

freeze the mixture

d)

store the mixture in a dark place

6.

Powdered juice, sugar, and water. Which is the solvent?

a)

powdered juice

b)

sugar

c)

water

d)

powdered juice and sugar

7.

In this mixture, which of the following will be the solute?

a)

The water in the glass.

b)

The solution containing both powder and water.

c)

The glass that holds the mixture.

d)

The powder on the spoon.

8.

You were given a 40 mL solution in a beaker. You added solute to the beaker and you observed some particles did not dissolve. What solution is it?

a)

Saturated

b)

Unsaturated

c)

Concentrated

d)

Supersaturated

9.

What do you call a solution that contains the maximum amount of solute dissolved by a given amount of solvent?

a)

Dilute solution

b)

Concentrated solution

c)

Saturated solution

d)

Unsaturated solution

10.

Which of the following refers to the solution that contains less solute than can dissolve at a given temperature?

a)

Dilute solution

b)

Concentrated solution

c)

Saturated solution

d)

Unsaturated solution

11.

An unsaturated solution contains less solute than required.

a)

True

b)

False

12.

A substance is found to have the following characteristics:


Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water


In what category would the substance be classified?

a)

acid

b)

base

c)

enzyme

d)

fatty acid

13.

Which of these pH values represent an acid?

a)

4

b)

8

c)

10

d)

12

14.

Milk is a very weak acid. What might its pH value be?

a)

6.5

b)

7.8

c)

4.2

d)

12.2

15.

Which of the following are properties of acids?

a)

They conduct electricity when dissolved in water

b)

They taste sour

c)

They react with metals to produce hydrogen gas

d)

All of the answer choices are correct

16.

Which of the following is a property of a base?

a)

bitter taste

b)

reacts with metals

c)

salty

d)

sour taste

17.

Bases have many uses. They are mainly used to make

a)

cleaning products

b)

soaps

c)

concrete

d)

all of the answer choices

18.

All bases have a sour taste.

a)

True

b)

False

19.

Which of the following pH values represents a base?

a)

2.1

b)

4.6

c)

6.8

d)

8.1

20.

The strongest bases have pH values close to

a)

0

b)

14

c)

7

d)

5

21.

Which of the following is a base?

a)

baking soda in water

b)

orange juice

c)

vinegar

d)

lemonade

22.

If the substance is neutral, what would the pH be?11

a)

3

b)

5

c)

7

d)

9

e)

11

23.
If an acid is combined with a base of equal strength, the result will most likely be
a)
a neutral solution.
b)
a stronger acid.
c)
impossible to tell without testing the pH.
d)
a stronger base
24.
Which of the following is a base?
a)
orange juice
b)
water
c)
vinegar
d)
dishwashing detergent
25.
Pure water has a pH of 7. Pure water _______.
a)
is a base
b)
is a neutral substance
c)
could be either an acid or a base
d)
is an acid
26.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
27.

What is a mixture?

a)

elements chemically combined

b)

a combination of different substances

c)

composed of one atom only

d)

it is made of chemical

28.
What type of mixture is this?
a)
heterogeneous 
b)
homogeneous
29.
Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?
a)
A solution
b)
A colloid
c)
A suspension
d)
A compound
30.

It is a type of mixture that has the SAME COMPOSITION in every part.

a)

Homogenous

b)

Heterogeneous

31.

Chocolate milk is an example of a _________________.

a)

homogeneous mixture

b)

heterogeneous mixture

32.

Salad is an example of a _____________.

a)

homogeneous mixture

b)

heterogeneous mixture

33.

Colored water is an example of a ________.

a)

homogeneous mixture

b)

heterogeneous mixture

34.

Chicken noodle soup is an example of a _____________.

a)

homogeneous mixture

b)

heterogeneous mixture

35.
Two substances physically combined and that appears the same throughout is classified as
a)
A homogeneous mixture
b)
A heterogeneous mixture
c)
An element
d)
  A compound
36.

This is a mixture of two or more substances in which one or more of these substances (solutes) is dissolved in another substance.

a)

compound

b)

element

c)

solution

d)

heterogeneous mixture

37.

What are two the two types of pure substances?

a)

elements

b)

compounds

c)

heterogenous mixtures

d)

homogenous mixtures

38.

What is this?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

39.

Which of these is a mixture?

a)

Laundry Detergent

b)

Salt (NaCl)

c)

Oxygen (O)

d)

Fluorine (Fl)

40.

Air is:

a)

An element

b)

A compound

c)

A mixture

d)

None of these

41.

Which mixture can easily be separated by Hand/Tweezers

a)
b)
c)
d)
42.
Separating mixtures based on boiling points.
a)
Desalination
b)
Distillation
c)
Decantation
d)
Condensation
43.
Which of the following is the correct order of organization in living things from most basic (simple) to most complex?
a)
a.  Organism, cell, tissue, organ, organ system
b)
a.  Organ system, organ, tissue, cell, organism
c)
a.  Cell, tissue, organ, organ system, organism
d)
a.  Cell, organ, tissue, organ, organism, organ system
44.
When a group of organs work together to perform a particular function they create a/an
a)
organ system
b)
organism
c)
tissue
d)
organ
45.
The smallest level of organization of life in an organism
a)
tissue
b)
cell
c)
organ
d)
organ system
46.
What do you have when organ systems work together?
a)
organs
b)
organism
c)
cells
d)
tissue
47.
The heart contains different types of tissue. What level is the heart?
a)
cell
b)
organ system
c)
organ
d)
tissue
48.
The digestive system includes the stomach. What level is the stomach?
a)
organ
b)
tissue
c)
cell
d)
organism
49.

This is an example of

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

50.

This is an example of

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

51.

This is an example of

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

52.

This is an example of

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

53.

A group of cells that have similar functions? Examples are nervous, epithelial, muscle, and connective

a)

Cells

b)

Organs

c)

Tissue

d)

Atoms

54.

How many biological levels of organization exist?

a)

1

b)

3

c)

5

d)

7

55.

What level of organization does row A represent?

a)

Organ

b)

Organism

c)

Tissue

d)

Organ System

56.

What level of organization does row B represent?

a)

Organ

b)

Organism

c)

Tissue

d)

Organ System

57.

What level of organization does row C represent?

a)

Organ

b)

Organism

c)

Tissue

d)

Organ System

58.

Which is the name of the part 1 of the microscope?

a)

Base

b)

Stage

c)

Eyepiece

59.

Which is the name of the part 2 of the microscope?

a)

Nosepiece

b)

Stageclips

c)

Objective Lens

60.

Which is the name of the part 3 of the microscope?

a)

Arm

b)

Objective Lens

c)

Coarse

61.

Which is the name of the part 4 of the microscope?

a)

Stage

b)

Mirror

c)

Fine Coarse

62.

Which is the name of the part 5 of the microscope?

a)

Eyepiece

b)

Body Tube

c)

Mirror

63.

Which is the name of the part 6 of the microscope?

a)

Base

b)

Objective Lens

c)

Fine Coarse

64.

Which is the name of the part 7 of the microscope?

a)

Mirror

b)

Nosepiece

c)

Coarse Focus

65.

Which is the name of the part 8 of the microscope?

a)

Stage clips

b)

Base

c)

Arm

66.

Which is the name of the part 9 of the microscope?

a)

Eyepiece

b)

Arm

c)

Objective Lens

67.

Which is the name of the part 10 of the microscope?

a)

Head

b)

Body Tube

c)

Stage

68.

________ cells have irregular shape. They contain four components

a)

animal

b)

human

c)

plant

d)

earth

69.

The four components of animal cells includes the following EXCEPT.

a)

cell wall

b)

cell membrane

c)

cytoplasm

d)

nucleus

70.

This is a "jelly-like" substance where the chemical reactions in a cell take place

a)

cell wall

b)

cell membrane

c)

cytoplasm

d)

nucleus

71.

also known as the PLASMA MEMBRANE

a)

cell wall

b)

cell membrane

c)

cytoplasm

d)

nucleus

72.

This controls the cell and contains genetic material.

a)

cell wall

b)

cell membrane

c)

cytoplasm

d)

nucleus

73.

Known as the “powerhouses of the cell

a)

mitochondria

b)

cell membrane

c)

cytoplasm

d)

nucleus

74.

______ are the building blocks of plants.

a)

mitochondria

b)

cell membrane

c)

Plant cells

d)

nucleus

75.

this strengthens the cell and provides supports

-It makes the cell stiff - providing the cell with mechanical support - and giving it protection

a)

mitochondria

b)

cell wall

c)

cytoplasm

d)

nucleus

76.

this contains a watery liquid called sap

- It stores toxic wastes as well as useful products such as water.

a)

vacuole

b)

cell wall

c)

cytoplasm

d)

nucleus

77.

this is where photosynthesis happens

a)

vacuole

b)

cell wall

c)

cytoplasm

d)

chloroplast

78.

What is that?

a)

Bacteria

b)

Fungi

c)

Virus

d)

Protozoa

79.

What is that?

a)

Bacteria

b)

Fungi

c)

Virus

d)

Protozoa

80.

From the picture, A represents ...

a)

Plasmid

b)

Cytoplasm

c)

Flagella

d)

DNA

81.

Grom the picture, B represents ...

a)

Cell wall

b)

Cell membrane

c)

Slime capsule

d)

Plasmid

82.

Bacteria can help to fertilize the soil. Explain how bacteria help to fertilize the soil!

4 lines
83.

From this picture we can know protozoa have a nucleus. So, we can know the characteristic of protozoa is ....

a)

Prokaryotic

b)

Eukaryotic

c)

Uniseluler

d)

Multiseluler

84.

Explain how mosquito bring malaria to human!

4 lines
85.

What the differences of yeast and mold fungi?

4 lines
86.

Which one is the function of fungi?

a)
b)
c)
d)
87.

Why do the lake have pink color?

4 lines
88.

From this picture, A represents ...

a)

Head

b)

Neck

c)

DNA

d)

Tail

89.

How people make vaccines?

4 lines
90.

On what structures do we find genes?

a)

genes

b)

alleles

c)

chromosomes

d)

traits

91.

What is heredity?

a)

the study of pea plants

b)

the passing down of traits from parent to offspring

c)

the study of genetics

d)

the passing of traits from offspring to parents

92.

What is genetics?

a)

the study of heredity

b)

the study of pea plants

c)

the study of cells

d)

the study of bacteria

93.

What word describes someone who has two DIFFERENT alleles for a certain trait

a)

homozygous

b)

purebred

c)

heterozygous

94.

What is another word for homozygous?

a)

heterozygous

b)

purebred

c)

hybrid

d)

dominant

95.

The passing of physical characteristics, or traits, from parent to offspring.

a)

Genetics

b)

Dominant allele

c)

Heredity

d)

Recessive allele

96.

The scientific study of heredity.

a)

Genetics

b)

Heredity

c)

Probability

d)

Pedigree

97.

An organism that is the offspring of many generations that show the same form of a trait.

a)

Heterozygous

b)

Dominant allele

c)

Purebred

d)

Genotype

98.

The different forms of a gene.

a)

Genes

b)

Allele

c)

Phenotype

d)

Pedigree

99.

A trait that always shows up when the allele is present.

a)

Genotype

b)

Phenotype

c)

allele

d)

Dominant allele

100.

A trait that is always hidden when the dominant allele is present.

a)

Phenotype

b)

Recessive allele

c)

Genotype

d)

Heredity

101.

An organism that has two different alleles for a trait.

a)

Genes

b)

Heterozygous

c)

Genotype

d)

Dominant allele

102.

A number that describes how likely it is that an event will occur.

a)

Probability

b)

Punnett square

c)

Pedigree

d)

Genotype

103.

A chart that shows all the possible ways alleles can combine in a genetic cross.

a)

Pedigree

b)

Family tree

c)

Heterozygous

d)

Punnett square

104.

A chart or a family tree that shows the presence or absence of a trait according to the relationships within a family across several generations.

a)

Punnett square

b)

Pedigree

c)

Heredity

d)

Purebred

105.

An organism that has two different alleles for a trait.

a)

Homozygous

b)

Heterozygous

c)

Dominant allele

d)

Hybrid

106.
somatic cells are _____
a)
haploid
b)
diploid
c)
zygotes
d)
sexual
107.
the two kinds of cellular division are
a)
mitosis and meiosis
b)
mitosis and fertilization
c)
fertilization and meiosis
d)
somatic and gamete
108.
the single cell that is made when sperm and egg combine their genetic material (DNA)
a)
zygote
b)
gamete
c)
somatic
d)
haploid
109.
Mitosis is _____ reproduction because all offspring (known as daughter cells) have the DNA from only one parent and are clones of that parent
a)
sexual
b)
asexual
c)
fertilization
d)
haploid
110.
this type of cellular division makes two cells that are genetically identical to the parent
a)
mitosis
b)
meiosis
111.
mitosis makes 
a)
somatic cells
b)
gametes
c)
zygotes
112.
This type of cellular reproduction is important because it allows organisms to grow and also repairs damaged tissue by replacing dead or injured cells
a)
mitosis
b)
meiosis
c)
fertilization
113.

What is the cell process called that produces identical cells?

a)

Mitosis

b)

Meiosis

c)

Photosynthesis

d)

Cellular Respiration

114.

The main goal of organisms is to produce as many offspring as possible to carry on their genetic information.

a)

True

b)

False

115.
The daughter cells in mitosis are...
a)
Identical
b)
Unique
116.
When a cell is not actively dividing, it is in what phase?
a)
interphase
b)
anaphase
c)
prophase
d)
telophase
117.
In mitosis, the two resulting cells are
a)
different from the starting cell and identical to each other.
b)
different from the starting cell and different from each other.
c)
identical to the starting cell and different from each other.
d)
identical to the starting cell and identical to each other.
118.

What is an ecosystem??

a)

A group of organism of one species

b)

All the living and non-living things that interact in an area

c)

The study of the interaction between living organism and their environment

d)

Soil, water, air and sunliight

119.

What is the study about ecosytem??

a)

Environmental Science

b)

Biology

c)

Ecology

d)

Botany

120.

what is the picture??

a)

Food chain

b)

Food web

c)

Food maps

d)

Mind mapping

121.

What are the organisms that break down dead stuff?

a)

Producer

b)

consumer

c)

Organism

d)

Decomposer

122.

The dragonfly provides energy for the .......??

a)

Butterfly

b)

Wolf

c)

Lavanders

d)

Thrush

123.

How many level of organization??

a)

4

b)

5

c)

7

d)

9

124.

This pyramid uses the total dry weight of living organisms per area. What is the name of pyramid ??

a)

Pyramid of numbers

b)

Pyramid of biomass

c)

Pyramid of energy

d)

All incorrect

125.

What is it??

a)

Herbivores

b)

Carnivores

c)

omnivore

d)

All correct

126.

what is the name for all the animals of the same species living in an ecosystem??

a)

community

b)

population

c)

Biosphere

d)

All of these

127.

what is a herbivore??

a)

An aminal that eats only herbs

b)

An animal that grts energy from eating other animals

c)

An organism that gets energy from eating only plants

d)

An animal that gets energy by eating both plants and other animals

128.
What is the primary source of energy in a food chain?
a)
A producer
b)
The sun
c)
A decomposer
d)
A consumer
129.
I ate a hamburger for dinner last night. What was the primary source of energy in the hamburger?
a)
The cow
b)
The grass
c)
The sun
d)
The beef
130.
Which is an example of a primary consumer?
a)
A cow
b)
A wolf
c)
The sun
d)
A snake
131.
Which organism would be considered a herbivore?
a)
A snake
b)
A deer
c)
A bear
d)
A shark
132.
Which organism would be considered a omnivore?
a)
A snake 
b)
A cow
c)
A wolf 
d)
A human
133.
Which organism would be considered a carnivore?
a)
A deer
b)
A mouse
c)
An elephant
d)
A snake
134.
How does a producer obtain it's energy?
a)
By eating other organisms
b)
By eating plants
c)
By breaking down dead, decaying matter
d)
By absorbing sunlight, water, and CO2 (carbon dioxide)
135.
How does a consumer obtain it's energy?
a)
By eating other organisms
b)
By eating plants
c)
By breaking down dead, decaying matter
d)
By absorbing sunlight, water, and CO2 (carbon dioxide)
136.
How does a decomposer obtain it's energy?
a)
By eating other organisms
b)
By eating plants
c)
By breaking down dead, decaying matter
d)
By absorbing sunlight, water, and CO2 (carbon dioxide)
137.
Which organism can be considered a secondary consumer?
a)
A frog
b)
A shark
c)
A hawk
d)
An elephant
138.
Which organism can be considered a tertiary consumer?
a)
A hawk
b)
A deer
c)
An elephant
d)
A rabbit
139.
Which organism can be considered a detritivore? 
a)
Mold
b)
Mushrooms
c)
Earthworms
d)
Bacteria
140.
Which of the following correctly depicts a food chain?
a)
sun, grass, rabbit, snake, hawk, decomposer
b)
sun, rabbit, grass, hawk, decomposer
c)
sun, snake, hawk, decomposer
d)
grass, rabbit, snake, hawk
141.
TRUE  or FALSE: Food webs are several food chains that are linked together.
a)
TRUE
b)
FALSE
142.
What does the arrow mean in a food chain or food web?
a)
An organism comes next
b)
Gets eaten by
c)
Go left
d)
Go right

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