PhET-Simulations-for-Chemistry/C2/Build-a-Molecule/English

Title of script: Build a Molecule

Author: Radhika Yadav

Keywords: PhET simulation, atoms, molecules, chemical formula, ball and spacefill, molecule in 3D, spoken tutorial, video tutorial.

Visual Cue	Narration
Slide Number 1 Title Slide	Welcome to this Spoken Tutorial on Build a Molecule.
Slide Number 2 Learning Objectives	In this tutorial, we will learn how to: Build molecules from atoms. Build molecules using a chemical formula.
Slide Number 3 System Requirements	This tutorial is recorded using, macOS Catalina version 10.15.7 Google Chrome version 101.0.49
Slide Number 4 Pre-requisites https://spoken-tutorial.org	To follow this tutorial, Learners should be familiar with topics in basic chemistry. Please use the link below to access the tutorials on PhET simulations.
Slide Number 5 Link for PhET simulation. https://phet.colorado.edu/sims/html/build-a-molecule	Please use the given link to download the PhET simulation.
Slide Number 6 PhET Simulation	In this tutorial, we will use, Build a Molecule PhET simulation.
Point to the simulation in the Downloads folder Build a Molecule simulation.	I have already downloaded the simulation to my Downloads folder.
Double click on the build-a-molecule_en.html file. Show in the browser.	To open the simulation, double click on the build-a-molecule_en.html file. The file opens in your default browser.
Point to the simulation interface. Click the mic icon.	This is the interface of the Build a Molecule simulation. You can adjust the simulation volume at the bottom right of the screen.
Point to each screen.	The interface has three screens, Single, Multiple, and Playground.
Click on Single screen.	Click on the Single screen.
Point to the atoms box at the bottom.	The box at the bottom of the screen has atoms kept in containers. We can use the arrows on both sides of this box to access the other atoms. We can drag the atoms in the containers onto the screen to build molecules.
Point to the button on the left. Yellow/gray button with an arrow and bowl.	The button on the left will refill the containers if atoms are used. Otherwise it will put the unused atoms on the screen back into the containers.
Point to Your Molecules table. Point to the list of molecules. Point to the Reset button. Point to the Reset button.	On the right, we have the Your Molecules table. It has a list of molecules that we have to build and collect. It has a small Reset button at the bottom. It will put back all the used atoms into the containers.
Point to the reset button.	The reset button will take us back to the start of the simulation.
Point to the atoms box at the bottom.	Atoms are single neutral particles. We will use these to build molecules. Molecules are neutral particles made by the bonding of two or more atoms.
Drag the ‘O’ atom on the screen	Let us drag the oxygen atom to the screen.
Drag the ‘H’ atoms on the screen	Let us drag the hydrogen atoms to the screen.
Drag all atoms close. Point to the water molecule.	If we bring the three atoms close, they get attached to each other. A water ( H2O) molecule is formed.
Click the green 3D button. Point to space fill and ball and stick options. Click on Ball and stick option.	The green 3D button shows the molecule in 3D format in a new window. At the bottom of the window we have spacefill and ball and stick options. We can choose to show the molecule either in spacefill or ball and stick format.
Click on the cross mark.	Let us close the window.
Click on the blue cross button above the molecule Drag all atoms close again.	This blue button will separate the molecule into individual atoms again.
Point to the blue arrow in the Your Molecules table.	A blue arrow appears in Your Molecules table.
Drag the water molecule in the box next to the blue arrow	Let us drag and put the water molecule in the box next to the arrow.
Click on the right arrow in the atoms box	We will now move rightwards in the atoms box and access the other atoms.
Drag the ‘O’ atoms on the screen	Let us join two oxygen atoms to make molecular oxygen.
Drag the molecular oxygen in the box next to the blue arrow	Let us drag and put the oxygen molecule in the table.
Drag the ‘H’ atoms on the screen	Similarly let us join the hydrogen atoms to make molecular hydrogen.
Drag the molecular hydrogen in the box next to the blue arrow	Again put the hydrogen molecule in the table as well.
Click on the right arrow in the atoms box	We will again move rightwards to access the other atoms.
Drag the ‘C’, ‘O’ and ‘N’ atoms on the screen	Let us join the carbon and oxygen atoms to make carbon dioxide molecule. Also join the nitrogen atoms to make molecular nitrogen.
Drag the molecules in the boxes next to the blue arrows	Finally, we will put these molecules in their places in the table.
Point to the dialog box. Click on the Next Collection button on the dialog box.	A dialog box appears after completing this collection of five molecules. Click on the Next Collection button to start building more molecules.
Point to the Your Molecules Table.	There are new atoms and molecules in this collection.
Click on the yellow arrow at the top of the table.	Yellow arrow at the top of the table helps us to navigate between the collections.
Point to the atoms box at the bottom.	You can practise building and collecting new molecules yourself.
Click on the Multiple screen.	Click on the Multiple screen. It is similar to the Single screen.
Point to the atoms box at the bottom.	The difference is that we have to build the same molecule multiple times.
Drag the ‘H’ atoms on the screen. Drag the molecular hydrogen in the box.	Let us make molecular hydrogen and put it in the table.
Point to the Your Molecules tables. Point to the 4 H2 molecules. Point to other molecules in the table.	Here the goal is to make 4 H2 molecules and we have made only one. You can complete the remaining collection on your own. Similarly build the other molecules and place them in the table.
Click on the Playground screen.	Click on the Playgound screen.
Click the arrows to show various atoms at the bottom.	In this screen we can build a variety of molecules using the atoms provided.
Drag on silicon atom and Drag 4 hydrogen atoms.	Let us build a silane molecule. Drag a silicon atom and four hydrogen atoms.
Click the 3D button. Click the X icon to close.	Click the 3D button to show its 3D structure. Let us close the window.
Slide Number 7 Assignment Use the Playground screen to build the following molecules: Hydrogen cyanide Chloromethane Nitric oxide Methylsilane Phosphine Hydrogen bromide	As an assignment, Use the Playground screen to build the following molecules.
	With this, we have come to the end of this tutorial. Let us summarise.
Slide number 8 Summary	In this tutorial, we have learnt how to: Build molecules from atoms. Build molecules using a chemical formula.
Slide number 9 About the Spoken Tutorial project	The video at the following link summarises the Spoken Tutorial project. Please download and watch it.
Slide number 10 Spoken Tutorial workshops	The Spoken Tutorial Project team: conducts workshops using spoken tutorials and gives certificates on passing online tests. For more details, please write to us.
Slide number 11 Forum for specific questions Do you have questions in THIS Spoken Tutorial? Please visit this site. Choose the minute and second where you have the question. Explain your question briefly. The Spoken tutorial project will ensure an answer. You will have to register to ask questions.	Please post your timed queries in this forum.
Slide number 12 Acknowledgement	The Spoken Tutorial project is funded by the Ministry of Education, Government of India.
Slide number 13 Thank you	This is Radhika Yadav, a FOSSEE summer fellow 2022, IIT Bombay signing off. Thanks for joining.

Contributors and Content Editors

Madhurig