investigating endothermic reaction

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Chemistry

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7th - 8th Grade

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13 Slides • 39 Questions

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

investigating endothermic reaction

by hanan khalil

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