Enquiry unit

Enquiry unit
Hypothesis, variables, risks, hazards, equipment and uses.
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Slide 1: Diapositive
ScienceLower Secondary (Key Stage 3)

Cette leçon contient 34 diapositives, avec quiz interactifs et diapositive de texte.

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Enquiry unit
Hypothesis, variables, risks, hazards, equipment and uses.

Slide 1 - Diapositive

What is the first step in writing a hypothesis?
A
Conducting experiments
B
Gathering data
C
Drawing conclusions
D
Identifying the problem or question

Slide 2 - Quiz

What is the purpose of fair testing in an experiment?
A
To gather as much data as possible
B
To eliminate the need for controls
C
To ensure only one variable is tested
D
To make the experiment more complex

Slide 3 - Quiz

Which of the following is an essential element of a well-written hypothesis?
A
It should be based on opinion
B
It must be testable
C
It should be long and detailed
D
It only applies to chemistry experiments

Slide 4 - Quiz

Why is it important to establish a fair test when conducting an experiment?
A
To ensure the reliability of the results
B
To make the experiment more challenging
C
To impress the audience
D
To speed up the data collection process

Slide 5 - Quiz

What role does the control group play in fair testing?
A
It is unnecessary for fair testing
B
It introduces a new variable
C
It provides a baseline for comparison
D
It makes the experiment more expensive

Slide 6 - Quiz

What is an independent variable?
A
A variable that stays constant
B
A variable that is observed and measured
C
A variable that is manipulated or changed
D
A variable that depends on the outcome

Slide 7 - Quiz

Which of the following is NOT an independent variable?
A
The time duration of an activity
B
The dosage of a medication
C
The temperature in an experiment
D
The outcome of an experiment

Slide 8 - Quiz

What is the rule for choosing an independent variable?
A
It should be the variable that has the most impact
B
It should be the variable that is intentionally changed
C
It should be the variable that is measured first
D
It should be the variable that is least understood

Slide 9 - Quiz

Which of the following is a dependent variable?
A
The amount of water given to the plants
B
The temperature in the room
C
The type of soil used
D
The growth of plants over time

Slide 10 - Quiz

What is not a dependent variable in an experiment?
A
The experimental procedure
B
The independent variable
C
The control group
D
The research hypothesis

Slide 11 - Quiz

Which of the following could be a dependent variable?
A
The number of teachers in the school
B
The test scores of students after a new teaching method
C
The students' age
D
The school's location

Slide 12 - Quiz

What is a common example of a dependent variable?
A
The color of the candle
B
The type of wax used
C
The size of the wick
D
The time it takes for a candle to burn out

Slide 13 - Quiz

What is not typically considered a dependent variable?
A
The data collected
B
The analysis method used
C
The outcome of the experiment
D
The sample size of the study

Slide 14 - Quiz

What is a control variable?
A
A variable that is kept constant in an experiment.
B
A variable that is only used in observational studies.
C
A variable that changes during an experiment.
D
A variable that is not important in scientific research.

Slide 15 - Quiz

Which of the following is not a control variable?
A
The variable which does not change.
B
The constant variable.
C
Keeping the temperature the same.
D
The independent variable.

Slide 16 - Quiz

What is an example of a control variable?
A
Keeping the temperature constant in an experiment.
B
Changing the light intensity in an experiment.
C
Measuring the growth of plants in different soils.
D
Varying the amount of fertilizer in a plant study.

Slide 17 - Quiz

What is an example of a risk in a science lab?
A
Wearing safety goggles
B
Spilling chemicals on skin
C
Using a fume hood
D
Turning off the lights

Slide 18 - Quiz

Why is it important to identify risks in a science lab?
A
To save time by skipping safety precautions
B
To have fun conducting experiments
C
To prevent accidents and ensure safety
D
To impress classmates with daring experiments

Slide 19 - Quiz

What is the definition of risks in a science lab?
A
Cleaning up spills promptly
B
Using proper lab equipment
C
Following safety guidelines
D
Potential for harm or danger during experiments

Slide 20 - Quiz

How can risks in a science lab be minimized?
A
By working alone in the lab
B
By ignoring warning signs
C
By conducting experiments quickly
D
By following safety protocols and using protective equipment

Slide 21 - Quiz

What should you do if you encounter a risk in a science lab?
A
Ignore it and continue with the experiment
B
Blame a classmate for the risk
C
Post about it on social media
D
Report it to the instructor immediately

Slide 22 - Quiz

What is a hazard?
A
A type of safety measure
B
A synonym for precaution
C
A form of protective equipment
D
A potential source of harm or adverse health effect

Slide 23 - Quiz

Which of the following is not a hazard?
A
A fire extinguisher
B
Chemical fumes
C
A slippery floor
D
Exposed electrical wires

Slide 24 - Quiz

What is used to measure the mass of an object in a science lab?
A
C. Bunsen burner
B
A. Balance
C
D. Microscope
D
B. Thermometer

Slide 25 - Quiz

Which equipment is used to hold test tubes during experiments?
A
D. Petri dish
B
C. Pipette
C
A. Graduated cylinder
D
B. Test tube holder

Slide 26 - Quiz

What is used to heat substances in a controlled manner in a science lab?
A
C. Bunsen burner
B
A. Beaker
C
B. Funnel
D
D. Erlenmeyer flask

Slide 27 - Quiz

Which equipment is used to measure liquid volume accurately in a science lab?
A
C. Petri dish
B
A. Microscope
C
D. Measuring cylinder
D
B. Balance

Slide 28 - Quiz

What is used to observe tiny objects or organisms in a science lab?
A
D. Funnel
B
C. Test tube holder
C
B. Bunsen burner
D
A. Microscope

Slide 29 - Quiz

Which piece of equipment is this?
A
Test tubes
B
Boiling tubes
C
Beakers
D
Measuring cylinders

Slide 30 - Quiz

Which piece of equipment is this?
A
Test tubes
B
Boiling tubes
C
Beakers
D
Measuring cylinders

Slide 31 - Quiz

Which piece of equipment is this?
A
Test tube
B
Beaker
C
Measuring cylinder
D
Gas tap

Slide 32 - Quiz

Risks that could
be in a science lab

Slide 33 - Carte mentale

Bunsen burner
Test tubes and holder
Beaker
Boiling tube

Slide 34 - Question de remorquage