Quiz about Night School Pretest 2025

Question 1

Which of the following is a correctly worded hypothesis?

Accepted Answer

If a plant is exposed to sunlight, then it will go through photosynthesis, because sunlight is all a plant needs.

Answer

If a plant has no access to carbon dioxide, then it will not go through photosynthesis.

Answer

All plants require carbon dioxide, water, and sunlight to go through photosynthesis.

Answer

My lab results indicate that the plants exposed to the most direct sunlight grew the most in height.

Question 2

Which of these steps should be completed before conducting an experiment?

Accepted Answer

Form a hypothesis

Accepted Answer

Write out initial procedures.

Accepted Answer

Design your experiment and write out all variables.

Accepted Answer

Do some background research.

Answer

Analyze the data

Question 3

Which variable is the one that is tested or manipulated during an experiment?

Accepted Answer

Independent Variable

Answer

Dependent Variable

Answer

Control

Answer

Constant

Question 4

Which variable is the one that is measured and may change during an experiment?

Accepted Answer

Dependent Variable

Answer

Independent Variable

Answer

Control

Answer

Constant

Question 5

Which variable is used as a standard of comparison? It does not receive the experimental factor.

Accepted Answer

Control

Answer

Independent Variable

Answer

Dependent Variable

Answer

Constant

Question 6

Which variable is held the same for all experimental groups?

Accepted Answer

Constant

Answer

Independent Variable

Answer

Dependent Variable

Answer

Control

Question 7

What is this tool called?

Accepted Answer

Graduated Cylinder

Answer

Beaker

Answer

Erlenmeyer Flask

Answer

Test Tube

Question 8

What is this tool called?

Accepted Answer

Graph

Answer

Chart

Question 9

What is the smallest unit of matter?

Accepted Answer

An atom

Answer

A cell

Answer

A molecule

Answer

All of the above

Question 10

What is the smallest living unit?

Accepted Answer

A cell

Answer

A molecule

Answer

An atom

Answer

All of the above

Question 11

What is the symbol of sodium?

Accepted Answer

Na

Answer

S

Answer

So

Answer

K

Question 12

What is the pH range of an acid?

Accepted Answer

1-6

Answer

7

Answer

8-14

Answer

0 to -6

Question 13

What is an example of a base?

Accepted Answer

bleach

Answer

orange juice

Answer

milk

Answer

stomach acid

Question 14

Which term means motion?

Accepted Answer

Kin/ kine

Answer

Cosm

Answer

Acceler

Answer

Erg

Question 15

Which term is an tool for viewing tiny organisms?

Accepted Answer

Microscope

Answer

Aerometer

Answer

Energy

Answer

Thermometer

Question 16

True or False: Gravity can stretch like a fabric.

Accepted Answer

True

Answer

False

Question 17

Which type of reaction breaks down a molecule into smaller parts?

Accepted Answer

Catabolic

Answer

Anabolic

Answer

Neutral

Answer

Dispersion

Question 18

Which type of reaction builds up a molecule from smaller parts?

Accepted Answer

Anabolic

Answer

Catabolic

Answer

Neutral

Answer

Dispersion

Question 19

What is the atomic number of carbon?

Accepted Answer

6

Answer

5

Answer

12

Answer

13

Question 20

Which number represents the mass number of an isotope of nitrogen?

Accepted Answer

14

Accepted Answer

15

Answer

7

Answer

29

Question 21

Which particles are represented by the gray dots?

Accepted Answer

electrons

Answer

protons

Answer

neutrons

Question 22

Which allele masks the other one? It is the expressed trait if an individual has both alleles.

Accepted Answer

Dominant

Answer

Recessive

Question 23

Which genotype is homozygous recessive?

Accepted Answer

aa

Answer

AA

Answer

Aa

Answer

All of the above

Question 24

Mendel crossed purple-flowered pea plants and white-flowered pea plants. All of the offspring turned out purple. Which trait is recessive?

Accepted Answer

white flowers

Answer

purple flowers

Answer

light purple flowers

Answer

purple-and-white-striped flowers

Question 25

How many pairs of chromosomes exist in most of your cells?

Accepted Answer

23 pairs

Answer

11 pairs

Answer

46 pairs

Answer

26 pairs

Question 26

Different versions of the same gene are called

Accepted Answer

alleles

Answer

traits

Answer

mutations

Answer

chromosomes

Question 27

Black hair in rabbits is dominant to white hair. Cross 2 heterozygous rabbits. What are the odds of white offspring?

Accepted Answer

25%

Answer

100%

Answer

50%

Answer

0%

Question 28

Type A blood and Type B blood are codominant, (the heterozygote has Type AB) and Type O is recessive. If both parents have Type AB blood, what types of blood could their children have?

Accepted Answer

Type A, Type B, or Type AB

Answer

Type A, Type B, or Type O

Answer

Only Type AB

Answer

Any type EXCEPT AB

Question 29

Snapdragons can be red, pink, or white. If a red flowering plant is crossed with a white flowering plant, the offspring will be pink. What type of inheritance is this?

Accepted Answer

Incomplete Dominance

Answer

Regular Dominance

Answer

Codominance

Answer

X-Linked

Question 30

A physical characteristic that can be passed from parent to offspring.

Accepted Answer

trait

Answer

behavior

Answer

ability to fly a plane.

Answer

strong muscles

Question 31

Y for yellow body is dominant over y for blue body.  What alleles would produce yellow bodies?

Accepted Answer

YY or Yy

Answer

YY only

Answer

YY or yy

Answer

yy only

Question 32

The exact genetic makeup of an organism, such as RR, Tt, PP is its?

Accepted Answer

Genotype

Answer

Phenotype

Question 33

The color of flowers are the plant's...

Accepted Answer

Phenotype

Answer

Genotype

Question 34

Natural selection means that individuals best suited to the environment are able to _____ more than individuals who are less suited to the environment.

Accepted Answer

Reproduce

Answer

Eat

Answer

Survive

Answer

Dominate

Question 35

Based on this graph, which of the following statements is true?

Accepted Answer

The anole weighs 2.5 grams after 3 days of observation

Answer

The mass of the anole increased by 2.5 grams in 3 days

Answer

The anole weighs 2.3 grams after 3 days

Answer

The mass of the anole increased by 2.7 grams during the experiment

Question 36

What is the axis for an independent variable  and dependent variable?

Accepted Answer

x-axis=independent
y-axis=dependent

Answer

x-axis=dependent
y-axis=independent

Answer

both axis are independent variables

Answer

both axis are dependent variables

Question 37

What is the Independent Variable?

Accepted Answer

Time

Answer

Distance

Question 38

What is the dependent variable?

Accepted Answer

Distance

Answer

Time

Question 39

What range of molarities will cause water to leave the cells?

Accepted Answer

.23 M - 1 M

Answer

0 M - .23 M

Answer

.23 M

Answer

.75 M - 1 M

Answer

0 M - 1 M

Question 40

What range of molarities will cause water to enter the cells?

Accepted Answer

0 M - .23 M

Answer

.23 M - 1 M

Answer

.23 M

Answer

.75 M - 1 M

Answer

0 M - 1 M

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