1st six weeks exam review - george west · pdf file1st six weeks exam review 1st six weeks...

1st Six Weeks Exam Review


Questions for your 1st six weeks exam will be taken from these question. Due to the large number of questions, not all of these will be on the exam.

Safety in the Science Classroom Questions 9-20

9

Which of the following is a safety risk for your eyes, and would be a reason

for wearing goggles?

A I

B I, II, III

C II, III, IV

D I, II, III, IV

I. unknown blue liquid II. glass beaker III. glass graduated cylinder IV. glass petri dish

10

You enter the classroom and your teacher tells you to stand on one side of

the room. You see on your laboratory table a lab procedure, a glass beaker with a blue liquid in it, a pipette, graduated cylinder, petri dish, leaves and

goggles. What is the first thing you should do?

F put the goggles on

G waft the beaker

H wait for teacher directions

J read the procedure


11

Mrs. Price reviewed the safety

precautions for working with sharp objects. Which activity

most likely requires these safety practices?

A determining the mass of an

empty beaker

B scooping 20g of chemical powder from a storage

container

C dissecting a frog

D determining the mass of 20g

of chemical powder

12

Which of these is an example of

an unsafe lab practice?

F testing a substance by tasting it

G watering a plant without

wearing gloves

H detecting an odor by moving air toward you with your

hand

J pulling your hair into a ponytail when working with

fire

13

Which lab investigation requires knowing the location of this

equipment?

A investigating the effectiveness of various

types of antibacterial wipes

B testing for the presence of sugar using benedicts

solution, hot plate, beaker and test tube

C dissecting an earthworm with

latex gloves, scalpel, probes and pins

D comparing the rate of mold growing on wheat, rye and

white breads

14

Which statement concerning lab safety is incorrect?

F Report all broken and/or

malfunctioning equipment to the teacher.

G Loose clothing and open-toed

sandals should not be worn.

H Wearing safety goggles is unnecessary if eyeglasses

are worn.

J Always tie back long hair.


15

Under what laboratory conditions is it necessary to use this

equipment?

A observing live specimens under the microscope using

green food coloring, salt, slide, coverslip and dropper

B diagramming the placement

of protons, neutrons, and electrons in chemical

compounds

C investigating the wave structure of a pendulum

D simulating a meteor shower using glycerin, liquid soap,

hydrochloric acid and zinc

17

While working in the lab, Sheila

masses 20g of sodium hydroxide on the triple beam balance then

masses 20g of sodium bicarbonate. Both are white

powders, but they react to other chemicals in very different ways.

Sheila is not certain which white powder is the sodium hydroxide.

What should she do?

A She should place both powders in the trash and

start over.

B She should place a drop of

water on a small amount of each powder and observe.

C She should proceed with the

experiment.

D She should check with her teacher for guidance.

16

What does this symbol indicate

about a chemical?

F It can cause injury to body tissues.

G It catches fire easily.

H It is hazardous to the environment.

J It can be harmful to your

lungs.


18

Which of the following shows the BEST way to heat a test tube over

an open flame?

F

G

H

J

20

Your lab group has completed the first of many water sampling activities. Empty sample bottles, pipettes, and microscope slides used during the activity remain on

the lab counter. The best lab practice is to -

F wipe the glassware with paper towels

G leave the materials exactly where they are for the next sampling activity

H follow the lab instructions for clean-up

J wash all the glassware with soap

19

When performing an experiment involving the use of bunsen burners, hot plates or flammable

substances, all students should know the locations of -

A fire extinguisher, fire blanket

B chemical splash goggles, lab apron, waste disposal

C heat resistant gloves, eye wash

station

D school nurse, emergency

shower, paper towels


Measurement Lab Questions 15-16

15

A student needs to measure

9.75 mL of a liquid. What measuring device should the

student use for the most

accurate measurement?

A beaker

B petri dish

C measuring cup

D graduated cylinder

16

Which of the following instruments is best for

measuring the mass of an object?

F spring scale

G graduated cylinder

H triple beam balance

J beaker


Photosynthesis Power Point Questions Questions 2-11

3

What kind of energy is necessary

to initiate (start) the process of photosynthesis?

F radiant

G heat

H electrical

J wind

2

Which diagram best represents

the process of photosynthesis?

4

What is the food that plants produce during photosynthesis?

A glucose

B chlorophyll

C chloroplasts

D carbon dioxide


5

Which of these processes

removes carbon from the atmosphere?

F combustion of fuels

G photosynthesis

H respiration in cells

J decomposition

8

What happens to the solar

energy absorbed by plants during photosynthesis?

A It is recycled by the plant

and returned to the atmosphere.

B It is converted into carbon dioxide and glucose.

C It is stored as heat within the

plant for cellular functions.

D It is transformed into chemical energy.

6

Which of these converts light energy to chemical energy?

A the bulb of a lamp

B the battery of a flashlight

C the leaf of a plant

D the screen of a computer

9

During the process of photosynthesis -

F radiant energy is converted into chemical energy.

G heat energy is transferred

into potential energy.

H radiant energy is changed into potential energy.

J thermal energy is exchanged

for kinetic energy.

7

What happens to glucose inside a cell during cellular respiration?

F glucose is broken down to release energy

G glucose is stored

H oxygen is created

J energy is lost


10

The equation above describes the chemical reaction that occurs during photosynthesis. What happens to the light energy that is shown in the

reaction.

A It is destroyed during the reaction.

B It is released when the reaction is complete.

C It is converted into chemical energy during the reaction.

D It is changed into atoms of carbon and oxygen during the reaction.

11

Why is it necessary to have sunlight in this equation?

F Sunlight uses carbon dioxide and water to form sugar.

G The arrow represents the specific direction of sunlight.

H The process cannot happen without energy from the sun.

J The arrow tells the equation to yield.


Pigment Chromatography Lab Questions 3-5

3 When sunlight strikes a plant, the leaves capture most of that energy to use

for photosynthesis. What is the role of chlorophyll in the process of photosynthesis?

A Chlorophyll absorbs sunlight.

B Chlorophyll absorbs glucose.

C Chlorophyll releases carbon dioxide.

D Chlorophyll transfers water to the roots of the plant.

4

Where in the cell is the chlorophyll found?

F in the nucleus

G in the mitochondria

H in the chloroplasts

J in the vacuole

5

Many plant leaves contain more than one pigment. Which of the

following lists the three most common colors in leaves?

A yellow, orange, blue

B green, blue, yellow

C yellow, red, blue

D green, yellow, red


Photosynthesis Assessment Questions 16-20

17

What is the food that plants

produce during photosynthesis?

F glucose

G chlorophyll

H chloroplasts

J carbon dioxide

18

Green plants produce their own food during photosynthesis. Which of these

statements about photosynthesis is true?

A Water is one product of photosynthesis.

B Oxygen is one product of photosynthesis.

C Chlorophyll is one product of photosynthesis.

D Carbon dioxide is one product of photosynthesis.

16

What is the role of carbon dioxide in the process of

photosynthesis?

F It is a product released by the plant.

G It is a reactant the pant

needs for photosynthesis.

H The plant uses it for energy.

J Carbon Dioxide has no role in

photosynthesis.


19

Which of these materials helps

plants use energy from sunlight?

A soil

B roots

C glucose

D chlorophyll

20

During photosynthesis -

F light energy is converted into

chemical energy

G chemical energy is transferred into potential

energy

H radiant energy is changed into potential energy

J solar energy is exchanged for kinetic energy


Recycling Biomass Questions 6-11

6

Biomass is stored ____________ energy that man can convert to

electricity, fuel, and heat. Through _______________ the energy from the sun is stored in the plant material.

A solar, decomposition

B solar, photosynthesis

C heat, recycling

D trophic, production

7

The annual goal of the Preservation Middle School Environmental Club is to

reduce the amount of solid waste it contributes to the landfill by collecting and composting food waste from the school cafeteria. Students then take

the rich soil from the compost bins and put it in the school flower gardens. This composting is a form of ______________.

F respiration

G pollution

H recycling

J fermentation


8

Fruit and vegetable scraps can be put into compost bins. With frequent turning, the compost will

turn into soil after about three months. What is occurring in the

compost bin?

A Decaying causes the food to

become cold.

B The amount of matter is doubled.

C Decomposers break down the organic matter.

D All the microbes in the food die.

9

Compost bins are containers where items such as food scraps, paper, and yard trimmings are combined

with water and air, and are allowed to break down and decompose. This

produces a nutrient rich product that can be used for fertilizer. What

happens to the energy from these materials as they decompose?

F There is no energy in dead

organisms.

G Some of the energy is lost as

the materials decompose.

H The energy stays in the compost bin.

J Some of the energy is released as heat.

10

A student noticed that the snow that fell on his family’s compost pile melted before the snow in the rest of the yard melted. Which statement BEST explains the student’s observation?

A Compost absorbs more sunlight than grass.

B Microorganisms change chemical energy into solar energy.

C Chemical energy is being converted to heat by microorganisms.

D Microorganisms change the compost into salt, which melts the snow.


11

Students were studying the role of decomposers in composting. They set up a compost bin and added food scraps. The graph below shows the change in temperature of the bin after two weeks. What is the probable cause for the increase

in temperature?

F The soil was heated to provide optimal growth conditions for the bacteria.

G During decomposition, the bacteria gave off energy in the form of heat.

H During decomposition, the bacteria gave off moisture which increased the

temperature.

J The soil chemistry was altered, which caused an increase in the temperature.


Live Oak County Dining Questions 11-21

Study the diagram below of a partial desert food web. Then answer the

following question(s).

11

Who are the producers?

A wood rat and night snake

B Joshua tree

C screech owl and hawk

D termite and boring weevil

12

What do the arrows in the diagram represent?

F the flow of energy in a food

web

G evolution from less to more

complex organisms

H symbiotic relationships among desert organisms

J the movement of desert

organisms at night


Use the desert food web below to answer the following questions:

14

How is this ecosystem MOST likely to be affected by a large increase in the number of rats?

F The snake population will decrease.

G There will be an increase in the number of snakes, coyotes and hawks.

H There will be a decrease in the number of coyotes and hawks.

J There will be an increase in the number of cacti and sagebrush

plants.

13

Who are the producers?

A cacti and sagebrush

B hawks and coyotes

C ants and tarantulas

D rats and snakes


15

What happens to the solar

energy absorbed by plants during photosynthesis?

A It is recycled by plants and

returned to the atmosphere.

B It is converted into oxygen and glucose.

C It is stored as heat within the

plant for cellular functions.

D It is converted into mechanical energy.

16

Energy flows through living

systems from -

F The sun, to heterotrophs, and then to autotrophs.

G Autotrophs, to the

environment, and then to heterotrophs.

H The sun, to autotrophs, and

then to heterotrophs.

J The environment, to the heterotrophs, and then to

autotrophs.

17

Which of these is the BEST way

to recognize a decomposer in an ecosystem?

A It does not move and is

mostly green.

B It chases other organisms.

C It lives on or near dead organisms.

D It feeds only on animals.

18

Phytoplankton consists of single-

celled algae. They live in aquatic ecosystems and can use

photosynthesis. Which is the role of phytoplankton in an

ecosystem?

F consumer

G decomposer

H parasite

J producer


19

If you eat a ham and cheese sandwich with lettuce and

tomatoes, where would you be placed on a food chain?

A producer

B primary consumer

C secondary consumer

D tertiary consumer

20

grass -- cricket--- bird

The source of energy for this food chain is -

F sunlight

G soil

H water

J seeds

21

The diagram illustrates the relationship of two species living in a grassland biome. What conclusion can be drawn about the location of the two species

in a food web.

A Species A and B occupy the same level of the food web.

B Species A is located on a higher level of the food web.

C Species B is located on a higher level of the food web.

D Species A and B shouldn’t be in the same food web.


The 10% Rule Questions 16-20

16

Use the pyramid diagram for the next question.

Which level best represents the level with the MOST energy available?

A Trophic Level 1

B Trophic Level 2

C Trophic Level 3

D Trophic Level 4

17

Ecosystems can be described in terms of feeding levels, or trophic levels.

Which organisms are found in the trophic level containing the greatest amount of available energy.

F producers

G primary consumers

H decomposers

J secondary consumers


18

A group of organisms that interact with and depend upon one another is called a community. The movement of matter and energy through a

community can be studied by examining its food web. As organisms eat other organisms, energy and nutrients pass through various feeding levels.

These feeding levels are called trophic levels. The following is a diagram of

the energy and nutrient flow through a simple community.

Which of the following trophic levels would have the least amount of

available energy?

A producers

B first order consumers

C second order consumers

D third order consumers


Use this diagram of a food web to answer the following question(s).

19

If these organisms were arranged in a food pyramid, which organism would

have the least amount of total energy available?

F coyote

G insect

H lizard

J shrub

20

What is the role of the bacteria in this ecosystem?

A producer

B omnivore

C decomposer

D carnivore


Chains, Webs and Pyramids Assessment Questions 18-29

18

When energy is passing through

a food web, some of the energy is lost. How much of the energy

is passed from one level to the next?

A 1%

B 10%

C 50%

D 90%

19

Which of the following is an

example of a producer?

F oak tree

G song bird

H polar bear

J mushroom

20

How do organisms get the energy they need?

A Plants get energy from fertilizers, and animals get energy from

drinking water.

B Plants get energy from glucose produced in the soil, and animals get

energy directly from sunlight.

C Plants do not require energy because they do not move, and animals get energy by performing exercise.

D Plants break down the glucose they produced during photosynthesis,

and animals get energy from eating other organisms.


21

SUN STRANGLER FIG CATERPILLAR LIZARD HARPY EAGLE

What would happen if pesticides drastically reduced the number of caterpillars

in this food chain.

F The lizard population would adapt to eating the strangler fig.

G The strangler fig population would increase; the lizard population would decrease.

H The lizard population would remain the same; the strangler fig

population would decrease.

J The strangler fig population would be unaffected; the lizard population

would increase.

22

What kind of organism is NOT shown in the diagram?

A producer

B consumer

C herbivore

D decomposer


23

How many producers are in the diagram?

F 1

G 2

H 3

J 4


24

Mario diagrammed a food web of algae, snails, ducks, frogs, and snakes that he observed during a summer trip to his grandparents’ farm. What is the

correct arrangement of these organisms on a trophic level pyramid.

D

C

A

B


25

Mushrooms and bacteria serve an important role in an ecosystem, that of

decomposer. Decomposers break down the organic material of once living organisms such as carbon and nitrogen. Why are decomposers important to

the ecosystem?

F They release stored energy and nutrients from dead organisms into the ecosystem.

G They eat only primary consumers.

H They provide a direct food source for producers and consumers in

the ecosystem.

J They are not an important component in the ecosystem.

28

Which organisms in the food web shown above compete for the same food

source in this environment?

A grasshoppers and snakes

B hawks and frogs

C frogs and snakes

D decomposers and grass


29

While exploring a lake, scientists found rocks covered with mats made of photosynthetic microbes. Flamingos in the area filter the nutrient rich

microbes by pumping lake water through their bill. What is the relationship

between the photosynthetic microbes and the flamingos?

F The microbes are parasites, and the flamingos are hosts.

G The microbes are carnivores, and the flamingos are predators.

H The microbes are herbivores, and the flamingos are carnivores.

J The microbes are producers, and the flamingos are consumers.


Forces in Living Things Lab Questions 19-29

19

Scientists working in space

would most likely be studying the effects of which of the

following on plant growth?

A friction

B gravity

C wind

D temperature

21

If the top portion of plants grow

“up”, explain why a small tree on a hillside does not grow

straight out from the hillside.

A The tree is growing toward

water.

B The tree is resting on the

hillside.

C The tree is leaning toward the top of the hill so rain

won’t wash it off.

D The tree’s roots and trunk are growing in response to

gravity.

20

What is a stimulus?

F a change in an organism's

surroundings that causes the organism to respond

G a violent disturbance in the

atmosphere

H clouds that form in flat layers

J the opening on the underside of most leaves

22

What caused this plant’s

behavior?

F gravitropism

G thigmotropism

H lack of turgor pressure

J negative homeostasis


The diagram illustrates a seed germinating. Many forces, including

responses to moisture, light, temperature and gravity are at work in this process. Use the diagram to answer the next two questions.

23

Which of the following correctly describes two of the seedling’s response to

stimuli?

A I is negative to light, and III is positive to gravity.

B IV is negative to temperature, and II is negative to gravity.

C II is negative to light, and III is positive to gravity.

D II is positive to gravity, and IV is positive to moisture.

24

Which part of the seedling is demonstrating a negative response to gravity

and which is showing a positive response to gravity?

F I is negative and III is positive.

G IV is negative and II is positive.

H II is negative and III is positive.

J III is negative and IV is positive.


25

In a germinating seed, the downward growth of roots and upward growth of

leaves and stems are the plant’s response to ________________________.

A sunlight

B gravity

C osmosis

D water

26

A venus fly trap closing in response to a fly is an example

of

F phototropism

G thigmostropism

H hydrotropism

J gravitropism

27

An organism that grows or moves away from light or any

other stimulus is said to show

A positive tropism

B photosynthesis

C negative hormones

D negative tropism


28

Marcia places her plant near the window for one week. She waters the plant

every day. What will happen to the plant after one week?

F it's leaves and flowers will stay the same

G it's leaves and flowers will grow toward the floor

H it's leaves and flowers will grow toward the light in the window

J it's leaves and flowers will grow away from the light in the window

29

A scientist planted two morning glory vines. He put a stake near the first

vine. The first vine grew upward, coiling around the stake, while the second vine grew low to the ground. Why did only the first vine grow upward?

A it responded positively to the stimulus of touching the stake

B it responded more strongly to light than the second vine

C it responded less strongly to gravity than the second vine

D it responded negatively to the stimulus of touching the ground

1st six weeks exam review - george west · pdf file1st six weeks exam review 1st six weeks...

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