2023 Middle Science EOY Review

Question 1

What is the coefficient of O2 in the following balanced chemical equation?

Accepted Answer

3

Question 2

The organelle that breaks down sugar into energy is

Accepted Answer

mitochondria

Question 3

Find the velocity of a train traveling 600 km southwest in a total of 6 hours.

Accepted Answer

100 km/hr SW

Question 4

Which property of water allows water molecules to stick to one another?

Accepted Answer

Cohesion

Question 5

Diffusion happens _________ when heat is added.

Accepted Answer

faster

Question 6

Osmosis is

Accepted Answer

water moving from high to low through a cell membrane

Question 7

What property of water is being displayed in the picture below?

Accepted Answer

Surface Tension

Question 8

Which is NOT part of the cell theory?

Accepted Answer

All cells have a nucleus.

Question 9

the gradual regrowth or development of a community of organisms over time

Accepted Answer

succession

Question 10

The sudden disappearance of a type of fossil in the fossil record is evidence of ___.

Accepted Answer

extinction

Question 11

Rain, snow, sleet, and hail are all examples of

Accepted Answer

Precipitation

Question 12

Which is the correct chemical formula for photosynthesis?

Accepted Answer

sunlight + 6CO2 +6H2O -> 6O2 + C6H12O6

Question 13

What type of storm is associated with cumulonimbus clouds and picking up objects?

Accepted Answer

Tornado

Question 14

What direction does the tail of a comet point?

Accepted Answer

Away from the sun

Question 15

What does turbidity measure?

Accepted Answer

how much sediment is in the water

Question 16

Which US President launched a huge space exploration program?

Accepted Answer

John F. Kennedy

Question 17

Is a river (water) abiotic or biotic ?

Accepted Answer

Abiotic

Question 18

The state of matter affects the speed of sound. Sound travels fastest through

Accepted Answer

solids, because the particles are close together

Question 19

Where can you find the ozone layer and the jetstream?

Accepted Answer

Stratosphere

Question 20

Which was the first country to launch both a satellite into space?

Accepted Answer

Soviet Union

Question 21

What do we call a natural or artificial object that orbits Earth?

Accepted Answer

Satellite

Question 22

What is most abundant gas in the atmosphere?

Accepted Answer

Nitrogen

Question 23

As you go down a slide, you eventually slow down to a complete stop due to friction.

Accepted Answer

1st Law of Motion

Question 24

Where are metals found on the periodic table?

Accepted Answer

to the LEFT of the "stair step"

Question 25

What is a use for gamma rays?

Accepted Answer

medical tracers, killing cancer cells

Question 26

Fill in the blanks. Cell, __________, organ, ______________, organism

Accepted Answer

tissue, organ system

Question 27

Is ice melting a chemical or physical change?

Accepted Answer

physical change

Question 28

What type of front is shown in this picture?

Accepted Answer

Stationary

Question 29

Which of these can X-rays NOT pass through?

Accepted Answer

bone

Question 30

A change in an organism's environment that affects the organism's activities is a

Accepted Answer

stimulus

Question 31

Cells are

Accepted Answer

all of the above

Question 32

To balance a chemical equation, you can change the

Accepted Answer

coefficient

Question 33

Scientists that won the Nobel prize for discovering the shape of DNA using models.

Accepted Answer

Watson, Crick

Question 34

What feature is labeled Number 12 on the diagram below?

Accepted Answer

Tributary

Question 35

What are the three most abundant elements in the human body?

Accepted Answer

Carbon, Oxygen, and Hydrogen

Question 36

A(n) _________________ helps an organism survive better in its environment.

Accepted Answer

adaptation

Question 37

What are the three major types of clouds?

Accepted Answer

Cirrus, stratus, cumulus

Question 38

Select TWO properties of the EM spectrum?

Accepted Answer

all transverse waves, can travel through a vacuum

Question 39

Prokaryotes are organisms whose cells LACK

Accepted Answer

true nucleus, membrane-bound organelles

Question 40

In what layer of the atmosphere does weather occur?

Accepted Answer

Troposhpere

Question 41

During which phase of the moon is sunlight reflected AWAY from Earth?

Accepted Answer

New

Question 42

The atomic number...

Accepted Answer

equals the number of protons, identifies the element

Question 43

A ____________ is a group of individuals of the same species, same place at the same time.

Accepted Answer

population

Question 44

A community and its abiotic environment make up a(n) __________________.

Accepted Answer

ecosystem

Question 45

What does the arrow represent in a chemical equation?

Accepted Answer

the chemical change

Question 46

What was Robert Hooke&#x27;s contribution to cell theory?

Accepted Answer

gave cells their name

Question 47

What temperature does water freeze at?

Accepted Answer

0°C

Question 48

What is weathering?

Accepted Answer

Breaking down rocks, soils, andminerals into smaller pieces

Question 49

What is the direction and net force?

Accepted Answer

Right 3N

Question 50

Large particles entering the cell

Accepted Answer

endocytosis

Question 51

Body cells use ______________ to reproduce.

Accepted Answer

Mitosis

Question 52

What do we use to measure distance in our solar system?

Accepted Answer

Astronomical Units

Question 53

What type of storm originates over warm water and has sustained winds of at least 74 mph?

Accepted Answer

Hurricane

Question 54

Which biome do you live in?

Accepted Answer

temperate deciduous forest

Question 55

3rd Law of Motion

Accepted Answer

For every action, there is an equal and opposite reaction.

Question 56

Which two steps in the Water Cycle involve water turning from a liquid to a gas?

Accepted Answer

Evaporation & Transpiration

Question 57

What is happening in this SPEED vs TIME graph after 5 seconds?

Accepted Answer

Steady Speed

Question 58

What does an anemometer measure?

Accepted Answer

Wind Speed

Question 59

Which trait is dominant?

Accepted Answer

Brown

Question 60

Are fireworks exploding a chemical or physical change?

Accepted Answer

chemical change

Question 61

What is convection?

Accepted Answer

Heat transfer from areas of high to low thermal energy

Question 62

Organisms that use photosynthesis to obtain energy. (Select the TWO best answers.)

Accepted Answer

producers, autotrophs

Question 63

The barbell weighs 50 kg. The man lifts it 2 m. The amount of work done to the barbell is:

Accepted Answer

100 J

Question 64

The passing of traits from parents to offspring.

Accepted Answer

heredity

2023 Middle Science EOY Review

Questions 67

2023 Middle Science EOY Review

Questions 67