sience 1-1

Question 1

The Scientific Method:

Answer 1

A series of steps designed to create, prepare, carry out, and then analyze a scientific experiment based on a good scientific question.

Question 2

Steps:1

Answer 2

Choose your question - Using your curiosity, ask a good scientific question that can be answered with an experiment.

Question 3

step 2

Answer 3

Research the topic - Use resources to learn more about the topic your question is about. Remember, most science is done in the library (or the internet nowadays)!

Question 4

step 3

Answer 4

Form a hypothesis - Make a “prediction” about the results of your experiment using the “if… then… because” method. Example: If I add drops of different liquids to a penny one at a time then water will hold the most drops because it is the most sticky.

Question 5

step 4

Answer 5

Identify your variables - You should have three types of variables:

Question 6

Manipulated variable -

Answer 6

The variable you are changing on purpose to carry out the experiment

Question 7

step 5

Answer 7

Carry out procedure - Follow the steps to complete the experiment, making sure to read all directions

Question 9

step 6

Answer 9

Collect data and observations - Write down your results, using tables and organizers to help

Question 10

step 7

Answer 10

Analyze data and draw conclusions - Use your recorded data to draw a conclusion, and make a visual aid such as a graph for your data

Question 11

Quantitative data -

Answer 11

Data that involves a measurement using numbers. Examples include: volume (how much space something takes up), mass (how much something weighs), temperature, dimensions (length, width, height), time (seconds).

Question 12

Qualitative data -

Answer 12

Data that involves observations that do not use numbers. Examples include: color, transparency, state of matter (solid, liquid, or gas), shape, smell, taste.

Question 13

Mean -

Answer 13

The average of a set of data. Calculated by adding all of the data points together, then dividing by the number of data points collected.

Question 14

Bar graph -

Answer 14

A graph that uses bars to compare and contrast different manipulated variables using the height of the bars to represent the value of the responding variable.

Question 15

Line graph -

Answer 15

A graph that plots points on a chart to show a change in the responding variable, usually over a period of time.

Question 16

Pie chart -

Answer 16

A circular chart that breaks down the parts of a whole into slices based on how much they take up.

Question 17

SI units

Answer 17

The international standard units used for each type of measurement. Remember, all scientific data is gathered using metric units.

Question 18

Examples of metric units:

Answer 18

Grams
Kilometers
Centimeters
Liters
Milliliters
Kilograms
Celsius degrees
Meters
Seconds

Question 19

Examples of standard units (DO NOT USE)

Answer 19

Pounds
Gallons
Ounces
Miles
Fahrenheit degrees
Cups
Inches
Tons

Question 20

The 4 attributes needed to be a good scientist

Answer 20

Curiosity - This allows a person to ask good scientific questions and care about the topic.
Honesty - A scientist must always write down and analyze the true results of their experiment, even if they are not what they wanted or if they don’t agree with the scientist’s hypothesis.
Open-mindedness/Skepticism - A scientist must be prepared to be proven wrong, but also be willing to retest their hypothesis even if it was right the first time.
Creativity - A creative scientist can come up with interesting and cool ways to test a question or carry out an experiment.

Question 21

Observations versus inferences

Answer 21

An observation is some you can directly see or use another sense to describe
Example: The clouds are dark and thick
Example: After I added the two chemicals together, the mixture started bubbling
An inference is a conclusion or guess or idea that is supported by evidence or an observation
Example: It is going to rain because the clouds are dark and thick
Example: The mixture is bubbling because a chemical reaction happened