investigating endothermic reaction

investigating endothermic reaction

by hanan khalil

Scientific Method - Match up

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Multiple Choice

Which of the following examples is an endothermic reaction?

• Potassium Chloride dissolves in water the temperature drops.

• Acid mixed with Sodium Carbonate the temperature drops.

Multiple Choice

What is an example of endothermic process?

• Chemical Ice Pack

• Boiling Water

• Bonfire

Multiple Choice

In an endothermic reaction, energy is _________.

• absorbed

• released

Multiple Choice

____ reactions usually feel cold.

• endothermic

• exothermic

Multiple Choice

Solid --> liquid --> gas is what type of reaction?

• endothermic

• exothermic

• catalytic

• inhibited

Multiple Choice

Endo means in or _______.

• absorbed

• released

Multiple Choice

Baking pizza in the oven

• endothermic

• exothermic

Multiple Choice

You freeze juice to make ice pops.

• exothermic

• endothermic

Multiple Choice

Scientific questions have to be...

• Measurable 
• Easy
• Interesting

Multiple Choice

Which question is a scientific question?

• Why is it foggy?

• Is it more likely to be foggy after a drizzling rain or a thunderstorm?

• What is fog?

• How can I draw a picture of fog with colored pencils?

Multiple Choice

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?

• Dependent
• Independent
• Control
• Compound

Multiple Choice

Research Question: Does the type of gasoline put in a car effect how fast the car can drive. What is the independent variable?

• Type of gasoline
• which car the gas is put into
• how fast the car can drive
• how much gas is put into the car

Multiple Choice

What would the INDEPENDENT variable be in an experiment testing which types of paper airplane goes furthest?

• the paper used
• the type of paper airplane
• the distance of each plane's flight
• how hard the plane is thrown

Multiple Choice

On a graph, which axis shows the dependent variable?

• x-axis
• y-axis
• neither
• it changes

Multiple Choice

On a graph, which axis shows the independent variable?

• x-axis
• y-axis
• neither
• it changes

Multiple Choice

The graph shows the distance traveled by Ms. Luce's family on a road trip. They will travel 25 miles each hour. Which statement is true about the situation?

• the independent variable is distance

• the independent variable is d=25 t

• the dependent variable is time

• the dependent variable is distance

Multiple Choice

The graph shows the cost of mailing a package based on its weight.  Which statement is true about the situation?

• The dependent variable is total cost
• The dependent variable is weight
• The independent variable is total cost
• The independent variable is cost of a package

Multiple Choice

A(n) _____________ variable depends on or is changed by another variable.

• dependent
• independent

Multiple Choice

Name this tool.

• Thermometer

• Triple Beam Balance

• Pan Balance

• Safety Goggles

Multiple Choice

Which of the following is used to measure length?

• Microscope

• Pan Balance

• Graduated Cylinder

• Meter Stick

Multiple Choice

Name this tool.

• Microscope

• Graduated Cylinder

• Safety Goggles

• Safety Apron

Multiple Choice

Which tool is used to measure elapsed time?

• Stop Watch

• Clock

• Thermometer

• Microscope

Multiple Choice

What is a graduated cylinder used for?

• Measures length

• Measures volume

• Measures mass

• Measures temperature

Multiple Choice

A triple beam balance and pan balance are both used to measure -

• weight

• temperature

• mass

• metal

Multiple Choice

Which tools are used to make small things larger?

• Hand Lens

• Microscope

• Thermometer

• Hand Lens and Microscope

Multiple Choice

Which of the following measures the pull of gravity or weight of an object?

• Spring Launch

• Spring Scale

• Triple Beam Balance

• Pan Balance

Multiple Choice

In order to measure temperature I would use a -

• Pan Balance

• Spring Scale

• Thermometer

• Meter Stick

Multiple Choice

Name this tool and its purpose.

• Graduated Cylinder; measures volume

• Beaker; measures volume

• Balance; measures mass

• Meter Stick; measures length

Multiple Choice

A pipette is another name for a -

• Water Dropper

• Graduated Cylinder

• Spring Scale

• Thermometer

Multiple Select

It is important to identify hazards and risks in the workplace to address the problems properly.

• True

• False

Multiple Choice

What is a hazard?

• The likelihood and severity of harm occurring

• An unexpected incident resulting in an injury

• A control measure to prevent harm

• Anything that can cause harm to a person / people

Multiple Choice

What is a risk?

• The likelihood and severity of harm occurring

• An unexpected incident resulting in an injury

• A control measure to prevent harm

• Anything that can cause harm to a person / people

Multiple Choice

What is the purpose of a risk assessment?

• To generate more paperwork

• Create work for the designated safety officers

• Proportion blame in the event of an accident occurring

• To evaluate hazards and to minimise the levels of its risk

Multiple Choice

What is the first step in conducting a risk assessment?

• Record your findings

• Evaluate the risks and decide on precautions

• Identify the hazards

• Decide who might be harmed and how

Multiple Choice

In a conclusion, what should you attach to your hypothesis?

• Nothing

• If it is right or wrong

• If it is supported or not supported

• If it is correct or incorrect

Multiple Choice

How many pieces of data should you have in your conclusion?

• At least 1 piece

• At least 2 pieces

• At least 3 pieces

• None

Multiple Choice

The order of a concusion

• Purpose, error and why it hindered the results, hypothesis, Is hypothesis supported or not, data, wrap up sentence, explain the data

• Purpose, hypothesis, Is hypothesis supported or not, data, explain the data, error and why it hindered the results, wrap up sentence

• Purpose, explain the data, error and why it hindered the results, hypothesis, Is hypothesis supported or not, data, wrap up sentence,

• Hypothesis, data, purpose, explanation, wrap up sentence

Multiple Choice

What should NOT be in a conclusion

• Data

• Hypothesis

• Explanation of your findings

• Summary of what you did

Multiple Choice

The format of the purpose sentence is...

• The purpose of this experiment was to investigate the effect of DV on IV

• The purpose of this experiment was to investigate the (restate hypothesis)

• The purpose of this experiment was to investigate the effect of IV on DV

• The whole point of the lab was to figure out the IV on DV