Science Unit 1

Question 1

The study of all living things, like plants, animals, and even single cell organisms

Answer 1

Life Science/Biology

Question 2

Deals with Earth and space-things like planets, stars, and rocks. Studies nonliving things and their history

Answer 2

Earth Science

Question 3

All about matter and energy, the most basic building blocks of the universe. It includes physics and chemistry

Answer 3

Physical Science

Question 4

The strategy used for scientific investigations

Answer 4

Scientific Inquiry

Question 5

A prediction or proposed explanation that can be tested

Answer 5

Hypothesis

Question 6

Using all of your senses and scientific instruments to describe a thing or event

Answer 6

Observation

Question 7

The findings of your scientific investigation

Answer 7

Conclusion

Question 8

Information or data based on countable measurements of something

Answer 8

Quantitative

Question 9

Information based on the qualities of something

Answer 9

Qualitative

Question 10

A proposed explanation that has been extensively tested and is biased on many observations

Answer 10

Theory

Question 11

A rule that describes how something in nature behaves, but not necessarily why it behave that way

Answer 11

Law

Question 12

What are the three main branches of science, and what does each study?

Answer 12

Life science/biology is the study of living things, Earth science is the study of earth and space, and Physical science is the study of matter and energy

Question 13

What are the basic steps of scientific inquiry?

Answer 13

Ask a question, do background research, make a hypothesis, test your hypothesis, analyze results, draw a conclusion, and share results. Or, if your hypothesis is proven false, make a new hypothesis and start again

Question 14

What is a hypothesis?

Answer 14

It’s an educated prediction that can be tested.

Question 15

If your observations do not support your hypothesis, what should you do?

Answer 15

Make a new hypothesis based on your observations and begin the process over again

Question 16

How is evidence used in scientific investigations?

Answer 16

Evidence-observations and data-can either support or oppose a hypothesis

Question 17

Compare and contrast a theory and a law.

Answer 17

A theory explains why something happens. A law identifies what happens in nature but doesn’t necessarily explain why it happens

Question 18

What are models, and why are they used in science?

Answer 18

A model is a representation of something. Models are used in science to help us think about things that are difficult to observe in real life.

Question 19

Give an example of a physical model, a computer model, and a mathematical model

Answer 19

Physical models-maps, globes, and dioramas
Computer models-3-d simulations of people or places and simulations of moving weather fronts
Mathematical models-equations, such as the equation of a line, and mathematical simulations, such as business proposals

Question 20

A step-by-step list of how to carry out the experiment

Answer 20

Procedure

Question 21

A trial where all the constant. A control is used as the standard of comparison for your experiment.

Answer 21

Control

Question 22

All the variables in an experiment that remain the same

Answer 22

Constants

Question 23

The variable that you change in an experiment on purpose

Answer 23

Independent Variable

Question 24

The variable that is influenced by the independent variable, the results of your experiment

Answer 24

Dependent Variable

Question 25

Present data in rows and columns

Answer 25

Tables

Question 26

A graph showing the relationship between two variables-on plotted on the x-axis (the horizontal line), the other on the Y-axis (the vertical line).

Answer 26

Line Graphs

Question 27

A type of line graph that shows the relationship between two sets of data.

Answer 27

Scatter Plot

Question 28

A type of graph that presents the data as rectangles of different heights

Answer 28

Bar Graphs

Question 29

A type of graph that looks like a pie cut into slices

Answer 29

Circle Graph (Pie Chart)

Question 30

Using observations and facts, to reach a conclusion about something you may not have directly witnessed

Answer 30

Infer

Question 31

A branch of science that studies the design. building, and use of machines and structures in order to invent new products that solve problems

Answer 31

Engineering

Question 32

The requirements that an engineer must fulfill in his or her design

Answer 32

Design specs

Question 33

Restrictions or limitations (can be physical, social, or financial)

Answer 33

Constraints

Question 34

A preliminary model that can be easily adjusted

Answer 34

Prototype

Question 35

Lets the reader know what the investigation was about

Answer 35

Title (Lab report)

Question 36

A brief description to answer the question, "What was the purpose of doing this experiment?" or "What is the question I'm trying to answer?"

Answer 36

Purpose (Lab report)

Question 37

Definitions of key words and explanation of key concepts

Answer 37

Background Information (Lab report)

Question 38

The predictions you were testing

Answer 38

Hypothesis (Lab report)

Question 39

A list of the materials and equipment necessary to carry out the experiment. You could even add a sketch or description of the setup

Answer 39

Materials & Equipment (Lab report)

Question 40

A step-by-step description of how to carry out the experiment

Answer 40

Procedure (Lab report)

Question 41

All the measurements and observations you made during the experiment.

Answer 41

Data (Lab report)

Question 42

A summary of what you learned from the experiment, whether or not your results support your hypothesis, any errors, and questions for more experiments

Answer 42

Conclusion (Lab report)

Question 43

How consistent and exact your measurements are

Answer 43

Precision

Question 44

How close to the actual value your measurement is

Answer 44

Accuracy

Question 45

A rough guess of a measurement using reason and observation

Answer 45

Estimation

Question 46

Giving a number a nearby value

Answer 46

Rounding Numbers

Question 47

Describe the difference between precision & accuracy

Answer 47

Precision is how consistent and exact a measurement is, while accuracy is how close to the actual or true value a measurement is

Question 48

What does a hypothesis tell you in a lab report?

Answer 48

A hypothesis describes the predictions you were testing

Question 49

What does a procedure tell you in a lab report?

Answer 49

A procedure is a list of the steps necessary to carry out the experiment

Question 50

What should you include in a conclusion?

Answer 50

A summary of the results, a discussion of whether or not the data supported the hypothesis, errors, and questions for further investigation

Question 51

Describe a situation where you would need to use estimation or round numbers.

Answer 51

Any situation where making an exact measurement isn't possible, or if you are calculating a number with a repeating decimal

Question 52

Define "Bias."

Answer 52

A bias is having a special interest that prevents you from being objective or conducting a fair test of your hypothesis

Question 53

Describe some reasons why you might be critical of scientific findings

Answer 53

The person or group conducting the experiment is biased, the data seems unreasonable, and/or the results aren't replicable

Question 54

Systeme Internationale

Answer 54

SI

Question 55

The distance between two paints

Answer 55

Length

Question 56

The amount of space something occupies

Answer 56

Volume

Question 57

The amount of matter in a liquid, solid, or gas

Answer 57

Mass

Question 58

The force exerted by a mass

Answer 58

Weight

Question 59

The amount of matter in a volume

Answer 59

Density

Question 60

How hot or cold something is

Answer 60

Temperature

Question 61

The period between events, or how long something lasted

Answer 61

Time

Question 62

Like a ruler, except it is 1 meter long

Answer 62

Meterstick

Question 63

Measures long distances through a series of clicks

Answer 63

Trundle Wheel

Question 64

For measuring distances that would be hard to measure using a meterstick or a trundle wheel, such as the distance around a round object

Answer 64

Tape Measure

Question 65

A cylinder marked on the outside to indicate how much fluid it contains

Answer 65

Graduated Cylinder

Question 66

The curved surface of a liquid in a tube

Answer 66

Meniscus

Question 67

Measures mass by placing an object on a pan

Answer 67

Electronic Balance

Question 68

Compares the weight of objects in pans on each side of a balance

Answer 68

Double Pan Balance

Question 69

Like a Double Pan Balance but instead there is a pan on one side, and three beams, each with sliding weights on the other side

Answer 69

Triple Beam Balance

Question 70

What are the SI units for mass, length, and temperature?

Answer 70

Grams, meters, kelvin

Question 71

What tool would you use to measure the height of your dog?

Answer 71

A meterstick

Question 72

Where do you look to take a volume reading of a liquid in a graduated cylinder?

Answer 72

The bottom of the meniscus

Question 73

What is the easiest tool used to measure mass?

Answer 73

An electronic balance

Question 74

How do you find the volume of a rectangular solid?

Answer 74

You measure the length, width, and height of an object. You then multiply all three numbers to find the volume of the object (volume = length x width x height).

Question 75

Describe the difference between mass and weight.

Answer 75

Mass is the amount of matter in an object, and weight is the force applied by mass

Question 76

Convert 50 centimeters to kilometers.

Answer 76

0.0005 kilometers

Question 77

Define "volume" and list some common volumes measured.

Answer 77

Volume is the amount of space something occupies, such as the volume of liquid in a soft drink, the volume of a serving of cereal, or the volume of a backpack

Question 78

If the boiling point of water in Celsius is 100 degrees, what is the boiling point in kelvin?

Answer 78

373.15 degrees kelvin

Question 79

You place a paperclip in a cup of soda and it sinks. Which is denser-the paper clip or the soda? Would the paperclip most likely have a density of 2.8, 1.0, or 0.3 g/ml?

Answer 79

The paperclip is denser; 2.8 g/ml

Question 80

Used if a chemical spills or splashes into your eye.

Answer 80

Eyewash

Question 81

Used when handling hot beakers or equipment

Answer 81

Thermal Mitts or Tongs

Question 82

Used to put out electrical, chemical, or gas fires

Answer 82

Fire Extinguisher

Question 83

Used to smother small fires on people or surfaces

Answer 83

Fire Blanket

Question 84

Used is a chemical is spilled and touches your skin either directly or through clothing

Answer 84

Shower

Question 85

Waste: blood, mold, dead animals, animal waste, or any objects contaminated by these things

Answer 85

Biological Waste

Question 86

Waste: anything poisonous, such as chemicals, solutions, or certain cleaning materials

Answer 86

Toxic Waste

Question 87

Waste: anything contaminated by radiation, perhaps from lab or x-ray equipment

Answer 87

Radioactive Waste

Question 88

Waste: things that can easily catch on fire such as gasoline, solvents, or alcohol

Answer 88

Flammable Waste

Question 89

Waste: highly corrosive chemicals such as acids, bases, and old batteries

Answer 89

Corrosive Chemical Waste

Question 90

Waste: broken glass or sharp objects such as needles or blades

Answer 90

Sharp Objects and Glassware

Question 91

Living or once living materials

Answer 91

Biological Materials

Question 92

Single cell organisms that have cell walls but no organelles or organized nucleus

Answer 92

Bacteria

Question 93

Like a stovetop, and there is a dial to control the heat

Answer 93

Hot Plate

Question 94

An open flame fed by gas

Answer 94

Bunsen Burner

Question 95

Used to hold up beakers, flasks, and test tubes

Answer 95

Ring Stand

Question 96

Looks kind of like a glass cup with a spout to make pouring fluids easier

Answer 96

Beaker

Question 97

Like a beaker, except that it's mouth is much narrower, so it can be closed with a stopper

Answer 97

Flask

Question 98

A long glass tube rounded at the end

Answer 98

Test Tube

Question 99

Rubber tops that fit into the neck of test tubes and flasks

Answer 99

Stoppers

Question 100

Helps you clean gunk out of narrow test tubes

Answer 100

Test Tube Brush

Question 101

A glass stick used for stirring liquids

Answer 101

Stirring Rod

Question 102

Used to help cleanly pour liquids from one container to another

Answer 102

Funnel

Question 103

A tool that allows you to see small things up close

Answer 103

Microscope

Question 104

A microscope with two lenses for super powerful magnification

Answer 104

Compound Microscope

Question 105

What is used to heat things with an open flame?

Answer 105

A Bunsen Burner

Question 106

What is a safer way to smell a chemical?

Answer 106

Wafting it

Question 107

What can you use to protect your eyes during labs?

Answer 107

Goggles

Question 108

Don't ______ or drink in lab!

Answer 108

Eat

Question 109

What instrument is like a beaker with a narrower mouth?

Answer 109

A flask

Question 110

What is the kind of waste that includes living or once living things?

Answer 110

Biological Waste

Question 111

A _______ stand is used in conjunction with a Bunsen Burner.

Answer 111

Ring

Question 112

What is used to smother small fires or to wrap a person on fire?

Answer 112

A fire blanket

Question 113

Never leave a heat source__________

Answer 113

Unattended

Question 114

What holds the specimen when you use a microscope?

Answer 114

A slide