2020 Post Test

Question 1

All matter is made of _______. (PS1-1)

Accepted Answer

atoms

Question 2

______ control traits, like seed color. Variation in traits, like yellow/green seeds,are______.

Accepted Answer

Genes; alleles

Question 3

Why would competition among individuals in a deer population increase during a winter ?

Accepted Answer

Many plants die and less food is available.

Question 4

What is cellular respiration? (LS1-2)

Accepted Answer

process by which cells use oxygen to get energy from food

Question 5

Imagine there is a mutation that turns the fur of a polar bear green. This mutation is _______.

Accepted Answer

harmful

Question 6

A TV transforms electrical energy to sound & electromagnetic energy. This is example of ______.

Accepted Answer

multiple transformation

Question 7

Gregor Mendel shaped much of ___________, the study of heredity & variations in organisms.

Accepted Answer

genetics

Question 8

1. ______, 2. ______, 3. design solution, 4. ______, 5. test, 6. redesign,7. communicate

Accepted Answer

identify a need; research the problem; build a prototype

Question 9

Which of the following occurs in all three forms of heat transfer? (PS3-3)

Accepted Answer

Heat flows from warmer areas to cooler areas.

Question 10

Animals or crops with the most desirable traits were selected to breed. This is called...

Accepted Answer

artificial selection

Question 11

A newborn whale can swim immediately after being born. Which type of behavior is this? (LS1-4)

Accepted Answer

instinct

Question 12

Which is the main use of carbohydrates in cells? (LS1-6)

Accepted Answer

to provide energy

Question 13

Which order correctly shows the evolution of Earth’s organisms? (ESS1-4)

Accepted Answer

microorganisms > fish > amphibians > reptiles > mammals

Question 14

__________ are the earliest known form of life on Earth. (ESS1-4)

Accepted Answer

single-celled organisms

Question 15

How do mass and speed affect the kinetic energy of an object? (PS3-1)

Accepted Answer

An object mass or speed increases, kinetic energy increases.

Question 16

Sweating is the body trying to regulate temp. Example of which characteristic of organisms?

Accepted Answer

response to the environment

Question 17

How long did it take for the continents to move from a super continent to today's locations?

Accepted Answer

millions of years

Question 18

Why do asexually produced offspring look identical to the parent? (LS3-2)

Accepted Answer

The offspring and parent share the exact same DNA.

Question 19

A bouncing ball’s movement is an example of ________. When the ball is still, it has__________.

Accepted Answer

kinetic energy; potential energy

Question 20

Offspring have adaptations that parents did not have. This organism is reproducing thru_______.

Accepted Answer

sexual reproduction

Question 21

The Earth's Crust is divided into pieces called __________________. (ESS2-3)

Accepted Answer

tectonic plates

Question 22

Is the organism, oak tree, a unicellular organism or a multicellular organism? (LS1-1)

Accepted Answer

It is a multicellular because it is made of many cells.

Question 23

Which is a compound that is only found in plants that enable them to create their own food?

Accepted Answer

chlorophyll

Question 24

Cactus makes its own food. Coyote eats other animals. Cactus is ________, & coyote is ________.

Accepted Answer

autotroph; heterotroph

Question 25

Wind moves sand from the beach is________. During ________,sand is left in another area.

Accepted Answer

erosion; deposition

Question 26

An amoeba is made of one cell, reproduces by making 2 genetic same amoebas. What is the amoeba?

Accepted Answer

a unicellular organism that reproduces asexually

Question 27

What are the green organelles in plant cells that use sunlight to create food? (LS1-2)

Accepted Answer

chloroplasts

Question 28

Which of the following is evidence that the continents have moved over time? (ESS2-3)

Accepted Answer

all of the above

Question 29

Engineers are building an unmanned underwater craft. What might they do during their research?

Accepted Answer

observe how dolphins swim

Question 30

Which of the following is in the correct order from least complex to most complex? (LS1-1)

Accepted Answer

cells, tissues, organs, organ system, organism

Question 31

Bill tests a new metal he thinks will be cheap & durable for railroads. What should Bill do?

Accepted Answer

create a model to test his idea

Question 32

Rocks close to mid-ocean ridges are______, the rocks far away from mid-ocean ridges are ______.

Accepted Answer

youngest; oldest

Question 33

Cool ocean water has a lower temp. than cup of coffee. Why does ocean have more thermal energy?

Accepted Answer

the ocean water contains a much higher number of particles

Question 34

What is the function of mitochondria? (LS1-2)

Accepted Answer

to convert food into a useful energy source for the cell

2020 Post Test

Questions 34

2020 Post Test

Questions 34