CMT SCIENTIFIC INQUIRY REVIEW GAME

APWDiscuss the following questions with your group. Be ready to share your answers orally.

What is the definition of:1.an independent variable of

an experiment?

2.A dependent variable?

3.A control?

4.Controlled variables/constants?

How do you write a hypothesis?

RULES!!!1. Choose one recorder to write the answers of the white board.

2. Write the letter of the answer on the white board and wait until I call time.

3. When its time, raise the white board and show the group answer.

4. All team members but contribute and participate.

5. Use quiet voices so other groups cannot hears your answers.

6. Use polite words when working together.

An experiment for a new asthma medication was set up into two groups. Group 1 was given the new drug for asthma, while group 2 was given a sugar pill. The sugar pill served as the_________.

• A. control

• B. Dependent variable

• C. experimental variable (independent)

• D. constant (control variable)

Answer: A. control

A scientist plants two rows of corn for experimentation. She puts fertilizer on row 1, but does not put fertilizer on row 2. Both rows receive the same amount of water and light intensity. She checks the growth of the corn over the course of 5 months. What is the constant in this experiment?

A.Amount of water

B.Corn without fertilizer

C.Corn with fertilizer

D.Plant height

ANSWER: A. amount of water

Based on the graph, the plant grows best in what amount of sunlight? __________Answer: 9

hours

The measurable factor in an experiment is known as the:

A.ControlB.Independent VariableC.Dependent VariableD.Constants

Answer – C. Dependent Variable

A student decided to set up an experiment to see if detergent affects the growth of seeds. He sets up 10 seed pots. 5 of the seed pots will receive a small amount of detergent in the soil and will be placed in the sun. The other 5 seed pots will not receive detergent and will be placed in the shade. All 10 seed pots will receive the same amount of water, the same number of seeds, and the same type of seeds. He grows the seeds for two months and charts the growth every 2 days. What is wrong with this experiment?

A. More than one variable is being tested.

B. The student should have a larger number of pots.

C. There is no way of measuring the outcome.

D. There is no control set-up

Answer = A. more than one variable is being tested.

On Day 7, the plants kept in the sun for 9 hours were how tall? _________Answer: 130 mm

In a controlled experiment, the variable that is changed to test the hypothesis is called the A, controlled variableB. Responding variableC. Dependent variableD. Independent variable

Answer = D. independent variable

A student has a wagon of a certain mass. He plans to investigate how the acceleration of the wagon changes as the force he exerts on it increases. In his investigation, the independent variable is

A. The acceleration of the wagon

B. The force acting on the wagon

C. The mass of the wagon

D. The mass of the student

Answer = B. the force acting on the wagon

A block has a mass of 100 grams. What is its volume?

What is its density?Answer: 20 cc = volume 5 g/cc = density

What happens to the dependent variable in a controlled experiment?

A. It changes as the independent variable changes

B. It changes as the responding variable changes

C. It does not change

D. It is supported or disproved

Answer – A. It changes as the independent variable changes

A student wants to conduct an experiment to find out how pulse rates changes as the length of time spent exercising increases. The dependent variable will beA.Breathing rateB.Pulse rateC.Time spent exercisingD.The kind of exercise

Answer = B. Pulse rate

What conclusion can you draw about the deer and wolf population graph?A.The wolf depends on the deer population to survive.B.The deer depend on the wolf population to survive.C. When the wolf population decreased, the deer population increased.D. There is no correlation between the two populations.

Answer: A

A student hypothesized that the amount of sunlight a sunflower plant receives determines the number of sunflower seeds the plant produces. In her experiment, the number of seeds produced is the

A.Dependent variableB. Independent variableC.Controlled variableD.Manipulated variable

Answer = A. dependent variable

In an experiment studying how increasing amounts of acid rain affect pond water, which of the following would be the dependent variable?

A.Organisms in rainwaterB.Acid rain and non-acid rainC.A mixture of pond water and acidD.Number of organisms in pond water

Answer = D. number of organisms in pond water

Which zones in the map above are most likely to have a temperate climate (warm summers and cold winters) ?A. 1 and 6 B. 2 and 5 C. 3 and 4 D.

1, 2, and 3Answer: B. 2 and 5

In a controlled experiment, the independent variable isA.The results of the experimentB.The variable that stays the sameC.Changed to test the hypothesisD.Always the same

Answer: C. changed to test the hypothesis

Name the independent and dependent variables in this hypothesis:If the average temperature of the Earth’s atmosphere is increased, then the size of the polar ice caps will decrease.

Independent variable: Dependent variable:

Answer: IV – temperature of the Earth’s atmosphere

DV – size of polar ice caps

At which temperature is a phase change occurring?

A.1200 degrees CB.1000 degrees CC.800 degrees CD.60 degrees C

Answer: B. 1000 degrees C

Which graph shows no motion?

Answer: B

Pat has two kinds of plant food,"Quickgrow" and "Supergrow." What would be the best way for Pat to find out which plant food helps a particular type of houseplant grow the most?A. Put some Quickgrow on a plant in the living room, put some Supergrow on a plant of the same type in the bedroom, and see which one grows the most.B. Find out how much each kind of plant food costs, because the more expensive kind is probably better for growing plants.C. Put some Quickgrow on a few plants, put the same amount of Supergrow on a few other plants of the same type, put all the plants in the same place, and see which group of plants grows the most.D. Look at the advertisements for Quickgrow, look at the advertisements for Supergrow, and see which one says it helps plants grow the most.

Answer: C.

A scientist studied the growth rate of a species of bacterium. The scientist introduced some of the bacteria into a flask of nutrient-rich solution and monitored the growth of the bacterial population by measuring the number of living cells in the solution.The graph below shows the growth of the bacterial population over time in hours (h).

Over which time period did the number of living bacteria increase at the greatest rate?A. Between hours 0 and 1B. Between hours 1 and 8C. Between hours 8 and 16D. Between hours 16 and 24

Answer: B

What is the measurement Of this liquid in mL?

A. 6.6 mLB. 6.2 mLC. 66 mLD. 6.61 mL

Answer: 6.6 mL

A student decided to set up an experiment to see if cats preferred skim milk or 2% milk. She put out a cup of milk for 10 kittens and then measured how much the kittens drank over the course of a day. The same kittens were used and the milk was served at the same temperature. The students discovered that the cats liked the 2% milk more than the skim milk. What is wrong with this experiment?A. There is no independent variable set up by the experimenter

B. The milk should be served at different temperatures

C. There are no constants present

D. All of the above

Answer = A

Find the average of this set of data and round to the nearest 10th:

25 , 32 , 16 ,8

A.81.0B.20.25C.21.0D.20.3

Answer: D. 20.3

CMT CONTENT REVIEW GAME

Which characteristic is shared by all cells?•A. They need energy.•B. They reproduce sexually.•C. They make their own food.•D. They move from place to place.

Answer - A

The “X” is pointing to which force? (the arrows pointing away from each other.)

A.CompressionB.TensionC.GravityD.Air resistance

Answer: B. tension

Which shape gives the strongest structure for a bridge?

A.Circle

B.Square

C.Diamond

D.triangle

Answer: D. triangle

The distance between two bridge supports is called the:

A.Arch

B.Span

C.Fathom

D.Compression

Answer: Span

Which of the following is not one of the two major forces bridges deal with?

A.Momentum

B.Tension

C.Compression

D.All of them

Answer: momentum

What gives an arch bridge its strength?

A. Its shape

B. Its size

C. Its material

D. Its height

Answer: A. its shape

What part of a suspension bridge receives the most compression?

A. The cables

B. The deck

C. The towers

D. All of the above

Answer: C. the towers

Tension acts primarily on which part of a suspension bridge?

A. the anchorages

B. The cables

C. The towers

D. The deck

Answer: B. the cables

Which statement best explains the reason muscle cells have more mitochondria than skin cells?

A. Muscle cells use more energy than skin cells.

B. Muscle cells have fewer proteins than skin cells.

C. Muscle cells have a smaller nucleus than skin cells.

D. Muscle cells have more excess water than skin cells.

Answer: A.

What is the role of cytoplasm in a living cell?

A.Fight infections

B.Digest proteins

C.Surround organelles

D.Pass on genetic information

Answer: C. surround organelles

How are plant and animal cells similar?

A.They both have flagella.

B.The both have a nucleus.

C.They both have an eyespot.

D.They both have chloroplasts.

Answer: B.

Information about the heredity of a cell is stored in which organelle?

A.lysosome

B.Mitochondrion

C.Nucleus

D.vacuole

Answer: C. nucleus

How is the cell membrane important to the process of osmosis?

A. It allows water to move into the cell.

B. It allows all materials from the outside environment to move into the cell.

C. It traps water and nutrients that would otherwise be unable to move into the cell.

D.It collects nutrients from water in the outside environment and moves them into the cell.

Answer: A.

What is most likely responsible for the formation of cancer cells?

A.An antibiotic

B.A mutagen

C.A bacterium

D.A parasite

Answer: B. Mutagen

Kelly slides a flat rock across the smooth ice of a frozen pond. The rock slows down after several seconds. What causes the rock to slow down?

A. The thickness of the iceB. The temperature of the air above the iceC. The force of friction between the ice and the rockD. The gravitational force between the ice and the rock

Answer: C

Meg designs an experiment to see which of three types of sneakers provides the most friction.She uses the equipment listed below.• Sneaker 1• Sneaker 2• Sneaker 3• Spring scaleShe uses the setup illustrated below and pulls the spring scale to the left.

In what direction does the force of friction act?A. To the leftB. To the rightC. UpwardD. Downward

ANSWER: B

Which of these are an example of an inclined plane?

A.An axe

B.A can opener

C.A pencil sharpener

D.A rampAnswer: D. a ramp

Which of these is an example of a wedge?

A.An axe

B.A see saw

C.A ramp

D.A rakeAnswer: A. an axe

The above figure is an example of:A. an inclined planeB. PulleyC. ScrewD. Lever Answer: D lever

Which of the following statement is true for Figure 1? a) b is the fulcrum, c is the resistance, a is the effort b) b is the resistance, c is the fulcrum, a is the effort c)b is the fulcrum, a is the effort, c is the resistance. d) b is the resistance, a is the fulcrum, c is the effort

Answer: D

A knife is an example of a (an):

a) Inclined Plane b) Wedge c) ramp d)pulley

Answer: B

This is an example of aA.First class leverB.second class leverC.Third class leverD.Fourth class lever

Answer: A. first class

Which figure makes work the easiest to perform?A.Figure AB.Figure B C.Figure CD.Figure D

answer: D figure D

Singled celled organisms can reproduce and create cells exactly like themselves without combining genes from two different parent cells. When they do this, they use a type of

A. asexual reproduction

B. Gamete formation

C. Natural selection

D. Sexual reproduction

Answer: A asexual reproduction

During mitosis, the doubling of chromosomes ensures that both new cells

A.Have identical genetic makeup

B.Are twice the size of the parent cell

C.Serve different functions

D.Remain attached to each other

Answer: A have identical genetic makeup

BB Bb

Bb bb

B b

B

b

This is a diagram of a genetic cross. In guinea pigs, black hair color is dominant (B) and white hair is recessive (b). What hair color are the guinea pigs’ offspring? (the phenotype)

A.All blackB.All whiteC.Mostly black with some whiteD.Mostly white with some black

Answer: C

In one species of guinea pig, the gene for black fur is dominant while the gene for brown fur is recessive. A male guinea pig with black fur and a female guinea pig with black fur produce an off spring with brown fur. Which most likely describes the genes of the guinea pigs?A.Both parents guinea pigs carry the recessive geneB.The male parent guinea pig carries the recessive gene, but the

female parent does not.C.The female parent guinea pig carries the recessive gene, but

the male parent does not.D.Neither parent guinea pig carries the recessive gene. The

brown fur was a spontaneous mutation.

Answer: A

PARENT GENERATION

BLACK X WHITE

F (1) ALL BLACK

F (2) 75% Black25% White

Rabbit Test Cross Results

What conclusion can be drawn from the genetic information above?

A.The white parent carried a dominant allele.B.All F (1) rabbits carried a recessive allele.C.All white rabbits are heterozygous.D.All the black rabbits in the F (2) generation are homozygous.

Answer: B

Hereditary information is found in a cell’s

A.Chloroplast

B.Chromosomes

C.Cytoplasm

D.membranes

Answer: B chromosomes

The processes of meiosis and fertilization help ensure the survival of the species by providing each generation with the same number of ___.• A. body cells

• B. chromosomes

• C. offspring

• D. gametes

Answer: B. chromosomes

The jimsonweed Daterra stramonium normally has 12 chromosomes in the body cells. How many chromosomes will an egg cell of the jimsonweed have?

• A. 6 chromosomes

• B. 12 chromosomes

• C. 18 chromosomes

• D. 24 chromosomes

Answer: A. 6 chromosomes