When planning your investigation, what is a primary goal?

To figure out which combinations produce bubbles

To determine the temperature of each solution

To measure the weight of each ingredient

Which ingredient combination would most likely result in bubbles when mixed with water?

Epsom salts and sugar-based lemonade mix

What is one of the key model ideas discussed in class regarding the bath bomb gas?

New substances can form during a chemical reaction.

Different solutions mix but don’t change.

The gas is stored in the liquid.

The gas is just air from the room.

What should you do if you notice cross-contamination in your materials?

Notify your teacher and seek corrective steps

What claim can you make about the gas bubbles observed?

They are the result of a new substance formed during the reaction.

They are unchanged parts of the original ingredients.

They appear due to temperature changes.

What evidence might you use to argue for a claim about the bath bomb gas?

Observations of bubbles and ingredient combinations

In what way can practicing the class norm of being respectful aid in a collaborative investigation?

Supportive and constructive feedback among group members

Allowing everyone to work alone

Encouraging rushing through steps

What claim might you make about the gas produced in the bubbles during the bath bomb experiment?

The gas is likely a new substance formed from the reaction of the combined ingredients.

The gas is air trapped in the mixture.

The gas is just an illusion caused by light on the water.

No gas is produced in such experiments.

What safety precautions should be followed during the combinations of ingredients lab?

Wearing splash goggles, careful handling of materials, and avoiding cross-contamination

Drinking the mixtures to test their taste

Pouring all solutions without using droppers

Skipping the safety procedures for faster results

How does conducting an investigation with various ingredient combinations help us learn?

It provides evidence of how different substances react and enhances scientific understanding.

It shows who can mix ingredients the fastest.

It determines which ingredients are the most expensive.

It replaces the need for learning chemical equations.

What are you likely to learn from combining different ingredients in a bath bomb experiment?

Which combinations produce a gas and the reactions that cause it

Which ingredients smell the best

What could be a next step after noticing which combinations of bath bomb ingredients produce a gas?

Discussing why these reactions occur and investigating further

Throwing away leftover ingredients

Drawing the bubbles that formed

What is the significance of writing the combinations you plan to test in each space of your ice cube tray?

To maintain uniformity and organization within your group

To ensure everyone has a unique combination

How does following the lab procedures, like using only a few drops of each solution, help in conducting the experiment?

It ensures consistent and controlled testing conditions for better accuracy.

It makes the experiment more interesting.

It speeds up the entire experiment.

It reduces the amount of data you need to record.

Why is it essential to use evidence and key model ideas to support your claim about the gas in the bubbles?

To ensure that the claim is based on factual and observed information

To challenge the views of others in your class

To write a more lengthy explanation

Why is discussing the use of evidence and key model ideas important in the whole-group discussion?

To confirm that everyone understands the basis for their claims and arguments

To fill up time during the class

To create more interesting debates

What could be the potential impact of not following safety precautions during the lab procedures?

It could lead to accidents or inaccurate results.

It makes the experiment less exciting.

It would speed up the experiment.

It would make the data collection easier.

What can be the possible cause if a combination of ingredients doesn’t produce bubbles in the investigation?

The chemical reaction required to produce gas did not occur.

The ingredients were not mixed properly.

The ice cube tray was not clean.

The observation was not recorded correctly.

Why are norms important in a learning community? Explain why you chose your answer.

They help everyone work together more effectively.

They ensure that everyone thinks the same way.

They make the learning environment more formal.

What patterns might be seen between the lemonade mixes and bubble formation? Explain your claim with evidence and reasoning.

Certain substances in the lemonade mix cause bubble formation.

The ingredients in the lemonade mixes do not affect bubble formation.

Patterns in the mixes are purely visual and have no impact on bubble formation.

Why is it important to test various combinations of bath bomb ingredients? Support your choice with a reasoned explanation.

Testing different combinations helps identify which ones produce gas.

Only a few combinations need to be tested since others are not important.

Testing various combinations is just for fun and not very serious.

How should students justify claims about gas formation in the bath bomb experiment? Explain your answer choice.

Students should use evidence and key model ideas to support their claims about gas formation.

Claims can be made without evidence as they don’t need to be justified.

Only personal opinions matter in making claims, not evidence.

What claim can we make about the gas in the bubbles formed from the bath bomb ingredients? Explain your claim with evidence and reasoning.

The gas is likely a result of a chemical reaction between citric acid and baking soda.

The gas might be just one of the initial substances we used initially but in a different form.

The gas is the same as the air we breathe and does not come from any reaction.

Why is it important to wear splash goggles during the lab? Explain your reasoning.

Splash goggles protect our eyes from harmful chemicals that might splash.

Splash goggles make sure we see better in the lab by reducing glare from lights.

Splash goggles are basically a stylish accessory to match with our lab coats.

OSE 7.1 Chemical Reactions Lesson 4

Authored by Tonya Reader

Science

8th Grade

NGSS covered

Used 2+ times

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31 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important not to cross-contaminate the pipettes?

To ensure that each solution remains uncontaminated and the results are accurate

To make sure each ingredient mixes better with water

To give a different texture to each mixture

To change the color of the mixtures

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When arguing for a claim about the bath bomb gas, what should you use to support your claim?

Evidence and key model ideas

Personal preferences

Guesses and assumptions

Opinions of friends

Why should splash goggles be worn throughout the experiment?

To protect your eyes from splashes

To see colors better

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to record detailed observations during the lab?

To have accurate and useful data

To fill up your notebook

To make it look interesting

To compare handwriting

What does testing combinations of bath bomb ingredients help figure out?

Which combinations produce gas

Which ingredient tastes the best

How to make lemonade

How to design packaging

In a mixture, what is true about its composition?

It contains more than one substance.

It consists of only one substance.

It is always a liquid.

It is always a solid.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which step is necessary to avoid contamination between solutions during the experiment?

Use the dropper that coordinates with each cup’s letter

Use the same dropper for all solutions

Mix solutions in any container

Pour solutions directly from the bottle

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