Hydrogen peroxide is a chemical compound made up of two hydrogen atoms and two oxygen atoms. It is a pale blue liquid that is often used as a disinfectant or bleach, and it can be found in many household cleaning products.
One interesting experiment that can be done with hydrogen peroxide is the potato experiment. This experiment involves cutting a potato into thin slices and soaking them in a solution of hydrogen peroxide for a period of time.
To perform the experiment, you will need the following materials:
- A potato
- Hydrogen peroxide (3% concentration)
- A plastic container or bowl
- A knife or potato slicer
- A timer or clock
To begin, slice the potato into thin rounds using the knife or potato slicer. You can cut the slices as thin or as thick as you like, but thinner slices will likely react faster to the hydrogen peroxide solution.
Next, fill the plastic container or bowl with enough hydrogen peroxide to cover the potato slices. Carefully place the potato slices into the solution and set a timer for 10 minutes.
As the potato slices soak in the hydrogen peroxide, you will begin to notice some bubbling and foaming. This is due to the release of oxygen gas as the hydrogen peroxide decomposes. The oxygen gas is what causes the bubbling and foaming, as it becomes trapped in the potato slices.
After 10 minutes, remove the potato slices from the solution and place them on a plate or paper towel to dry. As the potato slices dry, the oxygen gas will escape, and the bubbling and foaming will stop.
You may notice that the potato slices have changed color after soaking in the hydrogen peroxide solution. This is due to the bleaching effect of the hydrogen peroxide, which can lighten the natural color of the potato slices.
Overall, the potato experiment is a simple and fun way to demonstrate the decomposition of hydrogen peroxide and the release of oxygen gas. It is a great way to introduce students to the concept of chemical reactions and the properties of hydrogen peroxide.
An oral presentation is a type of public speaking where the speaker delivers a message to an audience through spoken words, usually in front of a group of people. There are many different topics that can be covered in an oral presentation, ranging from informative topics to persuasive topics. Some examples of oral presentation topics include:
The benefits of exercise and healthy living: This topic could cover the various ways in which regular physical activity can improve overall health and well-being. The presenter could discuss the benefits of exercise on mental health, weight management, and disease prevention.
The history of a particular country or region: This topic could cover the cultural, political, and economic developments of a particular country or region over time. The presenter could discuss key events and figures that have shaped the history of the area, as well as its current state.
The importance of sustainability and environmental conservation: This topic could cover the various ways in which individuals and society can work to protect the environment and preserve natural resources for future generations. The presenter could discuss the impacts of climate change and discuss strategies for reducing our environmental footprint.
The benefits of learning a second language: This topic could cover the various cognitive and social benefits of learning a second language, including improved communication skills, increased cultural understanding, and improved brain function. The presenter could discuss the different approaches to learning a second language and provide tips for those interested in learning one.
The dangers of social media and internet addiction: This topic could cover the negative impacts of excessive social media and internet usage on mental health and well-being. The presenter could discuss the potential dangers of addiction to social media and the internet, as well as strategies for managing and reducing screen time.
In conclusion, there are many different topics that can be covered in an oral presentation. Whether informative, persuasive, or somewhere in between, an oral presentation can be an effective way to communicate a message to an audience.
25 Best 3 Minute Speech Topics
To help you alleviate your stress in preparing for this SAC, we have created a comprehensive guide on this particular topic which includes some ideas to help you develop your writing, research and presentation skills! Graduation thesis defense template: The day of a student's thesis defence is crucial since all of their efforts will pay off after this oral defence, and this free template from WPS Office is ideal for that application. What injustices plural are going on here? What can be done about this? Throughout my speech, I embed persuasive tactics in an effort to firstly, encourage engagement from the audience and secondly, sway them to readily accept my point of view. I mean I love a page that is neatly written in a legible well-formed hand. Using Cluttered Infographics The point of focus of your oral presentation should be on YOU — your words, your stance on the issue. It is a contemporary topic as the next generation will have to face these challenges, proving an interesting oral if you focus on the stakeholders in each category teenagers, workers, government and retirees. Yes, when you know that the audience is interested in hearing you and you can engage them with good content it automatically boosts confidence. This is an oral presentation with a stance on an issue, not an assessment where you are marked for presenting information to an audience.
Free examples of oral presentations
Once you have done this for 5—10 articles you should be ready to write! Hold cue cards in one hand as high as you can without it feeling uncomfortable. Social Issues and Government Policy Topics Topics about social issues and government policies are likely to stir up a lot of emotions in you and your audience. So, here you could say that it's legal jargon and that he is now creating the picture of a school, not as a place for education, but a place where people are in custody. However, passion is another intense emotional response, and so if you are passionate about the arguments you are making then, although your fear will still be there, you will feel another strong emotion that can balance it out. What and who does she represent? This means constantly thinking about what the words will sound like in front of an audience, and not making the performance unnecessarily hard for yourself before you even start practicing. While delivering a 3 minutes speech is great however, the fear of public speaking can many times come in between delivering the speech in an effective manner.
Oral presentation topics
.jpg)
If you're somebody who struggles with language analysis and you've found this video helpful, or you've liked my teaching style, then I encourage you to check it out. A student are people who are craving to get a high score. So, let's hear what he has to say. Oral presentation topics ready for everyone wants a very interesting topic, many people want to know how to control their interactions, and here we will make many wonderful suggestions to apply it in your daily life to learn how to control your emotions. Do not, for example, write a five-minute speech on why one sports team is better than the other, or why murder should be illegal. The gaps in our labour market are only going to grow without rapid action Over the past year, we have had some of the worst gaps in the labour market. This reminds me of how subjective the marking process can be.
A Guide into Oral Presentation (Sample Included)
And what about the others, such as ecstasy? Richard initially sets out to learn their stories, but he is very quickly drawn into their histories of tragedy, as well as their dreams for the future. So the portrayal of this discipline model is a negative one. What are the types of rubrics? Eastwood masterfully depicts the true story of the moment when Nelson Mandela harnessed the power of sports to unite a deeply divided South Africa. As we will discuss below, this allows you to consider which aspects of form, language, audience, purpose and context you wish to include. During 2020, Asian Australians and particularly those with Chinese heritage experienced a sharp increase in racially-provoked harassment. Yet, Sample 2 engages with the audience in a much more effective manner. So credentials, basically, is what's the title of the person who's writing the article.
