Chapter 1 Review

AIM:Chapter 1 Review

WORD:

VARIABLE: SOMETHING THAT CAN CHANGE

#1

• ORGANISM THAT MAKES ITS OWN FOOD USING THE SUN

#2

• ORGANISM WITH ONLY ONE CELL

#3

• ORGANISM WITH MANY CELLS

#4

• ORGANISM THAT DEPENDS ON OTHER ORGANISMS FOR FOOD

#5

• A SMALL GROUP OF ATOMS BONDED TO EACH OTHER (CO2, O2)

#6

• THE BUILDING BLOCK OF LIVING THINGS

#7

• MAINTAINING A CONSTANT INTERNAL ENVIRONMENT

#8

• REPRODUCTION WITH ONLY ONE PARENT

#9

• A GROUP OF ORGANISMS OF THE SAME SPECIES

#10

• A GROUP OF CELLS WORKING TOGETHER

#11

• SEVERAL POPULATIONS LIVING TOGETHER

#12

• ONE OF THESE RED THINGS.

#13

• IS THIS AN AUTOTROPH OR A HETEROTROPH- AND WHY?

#14• CHANGES IN A LIVING THING

DURING ITS LIFETIME, FROM A SINGLE CELL TO AN ADULT ORGANISM

#15

• WHAT LEVEL OF ORGANIZATION IS THE HEART?

#16

•GIVE AN EXAMPLE OF AN ORGAN SYSTEM.

#17

• C _ _L• TISSUE• O _ _ _ N• ORGAN SYSTEM• O _ _ _ _ _ _ M

#18

• O _ _ _ _ _ _ _ _ _ N

• PROBLEM

• H _ _ _ _ _ _ _ _ S

• EXPERIMENT

• D _ _ A

• CONCLUSION

SCIENTIFIC

METHOD

#19

•The variable the scientist changes in an experiment (THE CAUSE)

#20

•The variable the scientist measures (THE EFFECT)

VARIABLES

• MANIPULATED (INDEPENDENT): The variable the scientist directly controls. (CAUSE)

• RESPONDING (DEPENDENT): The variable the scientist measures or records. (EFFECT)

HEART BEAT

• 1. How does the number of pushups you do affect how fast your heart beats?– MANIPULATED VARIABLE:

– RESPONDING VARIABLE:

NUMBER OF PUSHUPS

HEART RATE

BREAKFAST TIME

• 2. How does eating breakfast affect your grades in school?– MANIPULATED VARIABLE:

– RESPONDING VARIABLE:

EATING BREAKFAST

GRADES IN SCHOOL

SKATER SCIENCE

• 3. How does the type of surface affect how fast a skateboard moves?– MANIPULATED VARIABLE

– RESPONDING VARIABLE

TYPE OF SURFACE

SPEED OF SKATEBOARD

CONTROLLED EXPERIMENT

• A Controlled Experiment is one in which only one variable changes, and others are held constant.

Designing an ExperimentRedi’s Experiment

Manipulated Variable:Gauze covering that keeps flies away from meat

Responding Variable:whether maggots appear Maggots appear.

Severaldays pass.

No maggots appear.

Designing an ExperimentRedi’s Experiment

Controlled Variables:jars, type of meat,location, temperature,time

Covered jarsUncovered jars

KEY TERMS

• VARIABLE

• HYPOTHESIS

• MANIPULATED (INDEPENDENT)

• EXPERIMENT

• RESPONDING (DEPENDENT)

VOCAB CHECK

• 1.____________: Something that can change

• 2._____________: The variable the scientist directly controls.

• 3.______________: The variable the scientist measures or records.

• 4.______________: A test of a hypothesis.• 5.______________: An educated guess

about the answer to a scientific problem.

1–1– Observations involving numbers are known as • qualitative observations.• hypothetical observations.• quantitative observations.• inferred observations.

2

– A scientist takes paint chips from 10 apartments in a large building. She tests for the presence of lead in the paint and finds it in all 10 samples. She then concludes that lead paint is probably present in all 120 apartments in the building. This conclusion is an example ofA. a scientific fact.B. a scientific error.C. proof.D. a reasonable inference.

3

– A possible explanation for a set of observations is known as A. data.

B. a hypothesis.

C. An experiment

D. a result.

4

– A good scientific hypothesis must be• correct.• able to be tested.• obvious.• based on common sense.

5

– In an experiment, the variable that is deliberately changed is called the

• control.• manipulated variable.• responding variable.• constant control.

6

– Which of the following was the manipulated variable in Redi’s experiment?

• the kind of meat used• the temperature the jars were kept at• the gauze covering on some jars• the kind of fly that visited the jars

7

– A well-tested explanation that unifies a broad range of observations is a

• hypothesis.• variable.• control.• theory.

8

– A scientific explanation does not become a theory until

• a majority of scientists agree with it.• it has been supported by evidence from

numerous investigations and observations.• it is first proposed as an explanation.• it is published in a textbook.