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Science > Rachel-3rd Grade Science Part 1: Nature of Science > Flashcards

Rachel-3rd Grade Science Part 1: Nature of Science Flashcards

1
Q

Scientific word for the question?

A

Problem

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2
Q

Something asked in order to find out something?

A

Question

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3
Q

Prediction about what you think will happen?

A

Hypothesis

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4
Q

To state what you think will happen based on observations?

A

Predict

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5
Q

To observe and experiment using the process skills to find the answer to the problem?

A

Investigate

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6
Q

Using the 5 senses to find out about objects and events?

A

Observing

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7
Q

Using appropriate units to determine length, area, volume, time, weight, and temperature?

A

Measuring

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8
Q

A test or trial carried out under controlled conditions?

A

Experiment

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9
Q

Any factor that can change in an investigation to affect an outcome?

A

Variable

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10
Q

Something obtained by investigation?

A

Results

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11
Q

What you learned from y our investigation?

A

Conclusion

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12
Q

Doing an experiment over and over again?

A

Repeated Trials

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13
Q

The amount of matter in an object?

A

Mass

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14
Q

What is the safest way to smell a chemical?

A

WAFT the odor toward you (never smell it directly)

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15
Q

a) What should always be worn when experimenting with chemicals, using a heat source, or chipping objects? b) How long should you leave them on?

A

a) Goggles & Gloves b) Leave them on until all students are finished with the experiment

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16
Q

Is it safe to fool around chemicals and lab equipment?

A

No.

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17
Q

How do you safely dispose of solid chemicals?

A

Dispose in the trash container. Do not place them in the sink.

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18
Q

How do you safely dispose of liquid chemicals?

A

Turn on cold water. Slowly pour chemicals into sink. Flush with cold water for at least 30 seconds.

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19
Q

What tools are used to observe objects or organisms too small to see with the eye?

A

Microscopes and Discovery Scopes

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20
Q

What tool makes things appear larger?

A

A hand lens or magnifying glass

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21
Q

What is a closed container holding a small, model ecosystem?

A

Terrarium

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22
Q

What is a model habitat for water dwelling animals such as fish or frogs that usually includes the plants that would be in that ecosystem?

A

Aquarium

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23
Q

What is a tool used to find direction?

A

Compass

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24
Q

What type of safety equipment is used to protect the eyes?

A

Goggles

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25
Q

What can be used to measure how much time it takes to do something?

A

Timer

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26
Q

What tools have a pulling force called magnetism?

A

Magnets

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27
Q

What are used to hold liquids in a laboratory?

A

Beakers and Flasks

28
Q

What can be used to safely collect insects?

A

Collecting Net

29
Q

Name two tools is used to measure length?

A

Rulers & Meter Sticks

30
Q

What is a tool used to measure mass?

A

Pan Balance

31
Q

What is used to measure volume?

A

Graduated Cylinder

32
Q

What is the bottom of the liquid line on a graduated cylinder called?

A

Meniscus

33
Q

What tool is used to measure temperature?

A

Thermometer

34
Q

What is used to measure the amount of force needed to move an object?

A

Spring Scale

35
Q

What is it called when you group objects according to similarities and differences?

A

Classifying

36
Q

What is the measurement system used by most countries of the world?

A

Metrics

37
Q

About how wide is your little finger?

A

1 Centimeter

38
Q

What is 100 cm equal to?

A

1 Meter

39
Q

What is 1,000 meters equal to?

A

1 Kilometer

40
Q

What is 1,000 grams equal to?

A

1 Kilogram

41
Q

A push or a pull is?

A

Force

42
Q

A change in position is?

A

Motion

43
Q

A force that keeps touching objects from sliding past each other?

A

Friction

44
Q

What is the force that can pull (attract) or push (repel) objects made of iron or steel is?

A

Magnetism

45
Q

What is the measurement of the force of gravity pulling on an object?

A

Weight

46
Q

What is the measure of how fast something moves over a certain distance is?

A

Speed

47
Q

What is the measure of force that it takes to move an object a certain distance?

A

Work

48
Q

What is a tool that helps people do work?

A

Simple Machine

49
Q

What unit of measure is used to measure force?

A

Newtons

50
Q

What is the force that pulls things to Earth?

A

Gravity

51
Q

What holds the planets in orbit?

A

The sun’s gravity

52
Q

How do you reduce Friction?

A

By using a smoother surface, adding wheels to a heavy object, or putting oil on parts to make them more slippery

53
Q

What is the space around a magnet where the force of magnetism acts called?

A

Magnetic Field

54
Q

On a magnet, where is the magnetic force the strongest?

A

Near the poles or ends

55
Q

Forces that draw objects toward each other are said to what?

A

Attract

56
Q

Forces that push objects away from each other are said to what?

A

Repel

57
Q

Will like poles of two magnets attract or repel each other?

A

Repel

58
Q

Will opposite poles of two magnets attract or repel each other?

A

Attract

59
Q

What is a bar that moves on or around a fixed point called?

A

Lever

60
Q

What is a simple machine made of a flat surface set at an angle to another surface?

A

Inclined plane (ramp)

61
Q

What is an inclined plane wrapped around a center pole?

A

Screw

62
Q

What is a simple machine made up of a large wheel attached to a smaller wheel or rod?

A

Wheel and Axle

63
Q

What is a simple machine made up of rope or chain and a wheel around which the rope fits?

A

Pulley

64
Q

What is a machine made up of two inclined planes placed back-to-back that is usually used for cutting or piercing?

A

Wedge

65
Q

If the fulcrum and load are far apart with it take less or more force to lift a load?

A

More

66
Q

If the fulcrum and load are close together will it take less or more force to lift the load?

A

Less

Science (2 decks)

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