Lab Safety
Scientific Method
Controlled Experiments
Convert the Metric
Observations/Inferences
100

When an accident occurs you tell

Who is Mr, Wight?

100

There is one universal scientific method
 true or false?

What is false because it is not a linear method, it can be cyclical and move forwards and backwards

100

Constants are

What is all the variables in the experiment that remain the same?

100

The opposite of the metric system is 

What is the imperial system?

100

An observation is 

Any information collected with the five senses (direct) or with the help of a tool, instrument, or model (indirect)?

200

The location of the fire extinguisher and fire blanket in our classroom 423 P

What is in the back of the classroom on the right hand side of the wall?

200

The basic goal of all science 

What is the creation of new knowledge?

200

An independent variable and dependent variable are (definitions)

What is...

INDEPENDENT: is the variable that YOU CHANGE in an experiment ON PURPOSE -- INPUT

DEPENDENT: is the variable that is INFLUENCED by the independent variable → the results of your experiment -- DATA

200

The SI base unit for 

1. Length, Width, Height

2. Mass

3. Volume

What is...

1. the Meter (m)

2. the Kilogram (kg)

3. the liter (l)

200

An inference is 

What is a conclusion or deduction based on observations; the process of drawing a conclusion from given evidence?

300

Explain three unsafe activities in this image


(answers will vary)

1. Broken glass ware on the floor could cause injury?

2. Uneaten food and drink on lab surface could become contaminated?

3. Long hair not tied back near open flame?

300

An experiment is or is not a failure if your hypothesis was not supported

What is it is not a failure because it provides important information for future work done by scientists interested in the same topic?

300

The purpose of a control group is to 

What is the purpose of a control group is to serve as a means to know if the change has arisen from the treatment in the experimental group?

300

The steps of the ladder method

What is...

How do you use the “ladder” method?

  1. Find your starting point and ending point

  2. Count the “jumps” to your ending point

  3. Move the decimal point the same number of jumps in the same direction

  4. Place zeros in each space left by a “jump"

300

The difference between qualitative and quantitative data

What is quantitative data is measureable or countable and qualitative data is describable? 

400

The reason why you should never assume glassware that has been heated is cool. 

What is because hot glass looks the same as cool glass?

400

The steps of the scientific method are

(answers may vary)

What are...

1. Question: specific and testable

2. Background Research: to fill a knowledge gap

3. Hypothesis: your prediction as an objective statement

4. Methodology: what are the steps you are taking so another scientist can repeat your experiment

5. Experiment!: is your methodology working or not?

6. Analyze Data and Draw Conclusions: is your hypothesis supported by your conclusion or not?

7. Communicate: regardless of results, let the scientific and greater community know

400

Bart believes that mice exposed to microwaves will become extra strong (maybe he's been reading too much Radioactive Man). He decides to perform this experiment by placing 10 mice in a microwave for 10 seconds. He compared these 10 mice to another 10 mice that had not been exposed. His test consisted of a heavy block of wood that blocked the mouse food. He found that 8 out of 10 of the microwaved mice were able to push the block away. 7 out of 10 of the non-microwaved mice were able to do the same.


Control Group _________________

Independent Variable _______________

Dependent Variable _______________

What should Bart's conclusion be? _______________

What is 

Control Group: Mice not exposed to microwaves

Independent Variable: Exposure to microwaves

Dependent Variable: Push the block away or not

What should Bart's conclusion be? Microwaves don't really have an effect on mice pushing block to get food

400

Read the meniscus


What is 38 mL?

400

Make two inferences based on this picture


answers will vary

500

This scientific tool and what it is used for

What is a graduated cylinder used to measure volume very precisely?

500

The reason it is important to communicate findings with peers after finishing an experiment. 

What is so they can give feedback, replicate your experiment and learn from your work? 

500

A student wanted to test how the mass of a paper airplane affected the distance it would fly. Paper clips were added before each test flight. As each paper clip was added, the plane was tested to determine how far it would fly.

Independent variable ___________

Dependent variable _________________

Control ___________________

 Constant ____________________________

 

What are...

Independent variable: Mass of plane

Dependent variable: Distance plane flies

Control: Plane without paper clip weights

Constant: Type of paper used, type of paper clip used, same location, how it was thrown

500

Convert the following 

1. 2000 mg to g

2. 104 km to m

3. 75 mL to L 

What is...

1. 2 g

2. 104, 000

3. 0.075. L

500

Make three observations based on this picture


Answers will vary

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