7th Grade EOT Review 22-23

EOT REVIEW

7th Grade

Theory Vs. Law

​THEORY	​LAW
​EXPLAIN how and why of what is happening	​DESCRIBE description of a phenomenon in nature

Multiple Choice

Jamie is testing how the amount of salt affects how long it takes water to boil. She knows that to validate her conclusions, she must perform many trials. Jamie is practicing ________.

• Replication

• Repetition

Multiple Choice

Ty and Crystal are working together to learn about surface tension. They each add pennies to their own cup of water to see how many they can add before the cup overflows. Ty is able to add 15 pennies. Crystal is able to add 38. What should their next step be?

• a.They should discuss differences in their methods.

• They should each claim that their answer is right.

• They should record their results and move on to a different investigation.

• They should repeat the experiment using different pennies.

Multiple Choice

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• types of exercise

• heart rate

• number of people whose heart rates are monitored

• how long the exercise goes for

Multiple Choice

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• type of plant

• the amount of sunlight

• the type of music

• the type of liquid

Multiple Choice

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what are the controlled variables?

• type of plant, amount of music, and sunlight

• plant growth

• water, apple juice, milk

Multiple Select

Christopher set up six tanks with equal volumes of 20 ℃ water. Three of the tanks contained water with a high salt content of 30 parts per thousand and three contained water with no salt. Christopher added an equal amount of green algae to each tank. He allowed the algae to grow in the tanks for two weeks. Then, he measured the amount of algae in each tank. Identify the question that Christopher’s experiment can best answer.

• Is the growth of algae affected by the temperature?

• Do algae grown in water with a high salt content release more oxygen than an equal amount of algae grown in water without salt?

• Do algae grow more in water with high salt content than in water without salt?

Multiple Choice

Which is a good example of a hypothesis for the following scientific question, "Does playing violent video games lead to higher blood pressure?"

• Playing violent video games gives people higher blood pressure.

• If you have higher blood pressure, then you play violent video games.

• If you play violent video games you will have higher blood pressure.

• If you play violent video games, then you will have higher blood pressure.

Multiple Choice

A statement that can be tested or is an educated guess is known as what?

• control

• observation

• independent variable

• hypothesis

Multiple Choice

Tamar is talking about evolution with a friend. The friend says, “It’s just a theory, so I don’t believe it. When they prove it and it becomes the law of evolution, then maybe I’ll change my mind.” Which of these possible replies best describes scientific principles or the work of scientists?

• Scientists take each other at their word regarding experimental results, and the public should, too

• He should be wary of science because it is based on research and evidence, not bias and opinion.

• Science always finds the right answer; the answers that scientists and researchers discover never change.

• Scientific theories do not become scientific laws; they are explanations for natural phenomena based on evidence.

Multiple Choice

An explanation based on observations from many investigations

• Theory

• Law

ROCK CYCLE

​SEDIMENTARY	​METAMORPHIC	​IGNEOUS
​Weathering Erosion Deposition Compaction Cementation	​Changes due to heat and pressure	​Formed from melted and cooled rock
​Sediments	​Foliation	​Lava Magma

ROCK CYCLE

Multiple Choice

In which type of rock might you see a fossil?

• Marble

• Igneous rock

• Metamorphic rock

• Sedimentary rock

Multiple Choice

Thinking about sedimentary rock, the oldest layers are found

• on the top most layer

• in the middle of other layers

• all layers are the same age

• towards the bottom

Multiple Choice

the transport of fragments of rock by water, wind, ice, or gravity

• weathering

• erosion

• deposition

• lithification

Energy Conversions

​Energy can either be transferred or transformed from one type to another.

Multiple Choice

What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?

• mechanical energy to chemical energy

• thermal energy to mechanical energy

• chemical energy to mechanical energy

• mechanical energy to thermal energy

Multiple Choice

The roller coaster cart has the most kinetic energy at position-

• W

• X

• Y

• Z

Multiple Choice

What two forms of energy are given off by a burning candle?

• heat and light

• mechanical and electrical

• nuclear and light

• potential and heat

Multiple Choice

Which of these is an example of light energy being transformed into chemical energy?

• A glow stick lights up when broken.

• Water heated by the sun evaporates.

• A plant makes sugar in the sunlight.

• A battery causes a buzzer to vibrate.

Multiple Choice

Which object shows an energy transformation from electrical to mechanical?

EM SPECTRUM

Wavelengths and Frequencies of VISIBLE LIGHT

​Energy

Frequency

Wavelength

Match

Match the following

• Radio waves

• Microwaves

• Infrared rays

• UV rays

• Gamma Rays

Has the longest wavelengths and the lowest frequency

Used in cell phone communication and police radar systems

It is used in thermal imaging

Overexposure to this can result in sunburns and skin cancer

Has the highest energy of all electromagnetic radiation and is the most damaging to human tissue

• Has the longest wavelengths and the lowest frequency

• Used in cell phone communication and police radar systems

• It is used in thermal imaging

• Overexposure to this can result in sunburns and skin cancer

• Has the highest energy of all electromagnetic radiation and is the most damaging to human tissue

Reorder

Reorder the following from shortest wavelength to the longest wavelength.

• gamma waves

• x-rays

• ultraviolet waves

• visible light

• infrared rays

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

​Movement of Waves

Match

Match these

• sound

• light

• travels in waves

mechanical energy

radiant energy

both

• mechanical energy

• radiant energy

• both

Multiple Choice

Sound does not travel in space because

• Space is too far away.

• There is no matter in space.

• Space is the final frontier

• Space has planets.

Multiple Choice

Light waves travel the fastest in

• solid

• liquid

• gas

• vacuum of empty space

Multiple Choice

Sound travels FASTEST through which of these materials?

• Air

• Empty space

• Metal

• Water

Multiple Choice

Sound will travel slowest through which of the following forms of matter?

• milk

• desk

• air

• door

Reorder

Order these colors from least energy to most energy

• red

• orange

• green

• blue

• purple (violet)

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

Why does the straw appear to be bent?

• Light is reflected

• Light is refracted

• Light is turned

• Light is absorbed

Multiple Choice

A leaf is green because

• All colors are reflected except green

• The light is not part of the EM

• All colors are absorbed except green

• The sun light shining on the leaf is green

Multiple Choice

This picture shows an example of

• transmission

• reflection

• refraction

Multiple Choice

Our eyes detect different energies of light (wavelengths) as

• different polarities

• different intensities

• different colors

• different spectrum

transferred or moved from areas of higher temperature to lower temperature. Think of a hot cup of coffee or an ice cream cone...​

​Heat is...

Dropdown

Sun Bathing

Select answer

Drag and Drop

Feet on Hot Sand

Placeholder

Drag these tiles and drop them in the correct blank above

Conduction

Convection

Radiation

Dropdown

Heat Lamps

Select answer

Multiple Select

Cold Pack on Person

• Heat is transferred from the cold pack to the person.

• Heat is transferred from the person to the cold pack

• The cold pack is getting warmer. The person is getting colder.

• The cold pack is getting colder. The person is getting warmer.

Match

Match the following

• conduction

• convection

• radiation

ironing a shirt

a radiator heating a cold room

a microwave heating food

• ironing a shirt

• a radiator heating a cold room

• a microwave heating food

Plate Tectonics (boundaries)

Multiple Choice

What geological features surround the Ring of Fire in the Pacific that aren't found in the Atlantic Ocean?

• Mid-ocean ridges

• Coral reefs

• Subduction trenches

• Hot spots

Match

Match the following

divergent

convergent

transform

• divergent

• convergent

• transform

Multiple Select

What THREE(3) geologic principles(or laws) is best displayed here?

• Superposition

• Original horizontality

• Cross-cutting relationships

• Unconformities

Multiple Choice

According to the law of superposition, the oldest fossils are found 

• At the top of the rock layers

• Near the bottom of the rock layers

• In the middle of the rock layers

• Somewhat near the surface

Multiple Choice

_{Which rock layer in the diagram seems to be the oldest?}

• F

• E

• B

• A

Match

Match the following pictures with the words they represent

Analogous Structure

Homologous Structure

Adaptation

Artificial selection

Natural selection

• Analogous Structure

• Homologous Structure

• Adaptation

• Artificial selection

• Natural selection

Multiple Choice

The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct?

• Fossil A and C are the same age

• Fossil B is older than fossil C

• Fossils A is older than fossil B

• Fossil D is older than fossil C

Dropdown

The fossils found closer to the surface of the ground are generally -

Select answer

Multiple Choice

What is the advantage of having different shaped beaks?

• To look different from other species.

• To be able to eat the food readily available in the environment.

• To protect itself against predators.

• To protect itself against prey.

Multiple Choice

Which species’ DNA is most similar to the DNA of the toothed whale? 

• Hippopotamus 

• Baleen Whale

• Grazing Mammals

• Camels

Multiple Choice

What does Darwin's theory of evolution suggest?

• species change over time

• extinct species are not related to living species

• different species can interbreed

• animals that look alike are most closely related

Multiple Choice

True or False: The Ring of Fire is a direct result of plate tectonics and the movement and collisions of crustal plates.

• True

• False

Multiple Choice

What is a gene?

• A bundle (like a hot dog bun) that the DNA is packed into

• something inside the nucleus

• a piece of DNA

• all of your DNA

​Punnett Square

​Punnett Square = a chart used to predict the genotype & phenotype of a trait in the offspring of two mates

Multiple Choice

What allele combination should go in the missing box?

• AA

• Aa

• aa

• none of these

Multiple Choice

What is the probability of having BB?

• 0%

• 25%

• 50%

• 75%

• 100%

​Punnett Square Terms

​Homozygous Dominant = two large letters for a trait

​

​Homozygous Recessive = two small letters for a trait

​

​Heterozygous (carrier) = one large letter and one small letter for a trait

Multiple Choice

My alleles for eye color are Bb. This is an example of

• genotype

• phenotype

Multiple Choice

My eyes are brown. This is an example of

• Genotype

• Phenotype

Multiple Choice

Which of these is the correct order showing the largest to smallest parts of genetic material?

• DNA, Cell Membrane, Cell Nucleus Chromosomes, and Genes

• Cell Nucleus, Cell Membrane, Chromosomes, Genes, and DNA

• DNA, Genes, Cell Membrane, Cell Nucleus, and Chromosomes

• Cell Membrane, Cell Nucleus, Chromosomes, DNA, and Genes

Multiple Choice

Which sentence is FALSE?

• All organisms have 23 pairs of DNA.

• Chromosomes are made of genes.

• DNA is made out of 4 nucleotides: adenine, cytosine, thymine, guanine

• DNA is the recipe for life.

Multiple Choice

What is the relationship between DNA and chromosomes?

• Chromosomes are made of DNA

• DNA is made of chromosomes

• DNA and chromosomes are the same thing.

• All of the above are correct

Symbiotic Relationships

Multiple Choice

Honey guide birds alert and direct badgers to bee hives. The badgers then expose the hives and feed on the honey first. Then, the honey guide birds eat as well.

• symbiosis

• parasitism

• mutualism

• commensalism

Multiple Choice

The fox in this food web would be considered a:

• Tertiary Consumer

• Producer

• Secondary Consumer

• Primary Consumer

Multiple Choice

Why might an organism have more than one arrow coming FROM them in a food web?

• More than one organism may eat them.

• They may eat more than one other organism.

• This organism gets its energy from multiple sources.

Multiple Choice

What happens to the amount of available energy in the pyramid as it moves up through the different levels?

• it increases

• it decreases

• it remains the same

Match

Match the following

Predation

Symbiosis

Commensalism

Parasitism

• Predation

• Symbiosis

• Commensalism

• Parasitism

Multiple Choice

Which of the following is a predator and prey relationship?

• A. Cow and grass.

• B. Vulture and a dead lion.

• C. Tick and a deer.

• D. Spider and a fly.

Words you don’t know (you’ve never heard of
before) mean…

​THAT IT IS PROBABLY NOT THE ANSWER!!!!