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What is plasma? Where it can be found in nature? Do we use it in our everyday lives?
What is plasma? Where it can be found in nature? Do we use it in our everyday lives?
Before we answer the questions above, let's check your prior knowledge.
Before we answer the questions above, let's check your prior knowledge.
Activity 1. Introductory quiz
Activity 1. Introductory quiz
Complete the following quiz. Check your answers after submitting.
Complete the following quiz. Check your answers after submitting.
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Did the quiz answers surprise you?
Did the quiz answers surprise you?
Activity 2. Experimenting with a plasma ball
Activity 2. Experimenting with a plasma ball
Now, watch the following video. Think about what you observe in the experiments.
Now, watch the following video. Think about what you observe in the experiments.
Write the answers to the questions from the video on the Padlet board (below) explaining what happened in video and why.
Write the answers to the questions from the video on the Padlet board (below) explaining what happened in video and why.
Then choose one answer and add a comment.
Then choose one answer and add a comment.
Do you agree or disagree with the explanations? Argue your comment.
Do you agree or disagree with the explanations? Argue your comment.
Plasmaspart1.mp4Video: C. A. Garcia Soto
The plasma ball is a simple device that can be used to explain how plasma is generated. Find the answers to the questions in the video.
The plasma ball is a simple device that can be used to explain how plasma is generated. Find the answers to the questions in the video.
Activity 3. It's all about ionisation and heat
Activity 3. It's all about ionisation and heat
Plasma, known as fourth state of matter, is ionized matter which consists of positive ions and electrons.
Plasma, known as fourth state of matter, is ionized matter which consists of positive ions and electrons.
Although the particles of which it is composed are electrically charged, plasma as a whole is electrically neutral.
Although the particles of which it is composed are electrically charged, plasma as a whole is electrically neutral.
But due to these particles, plasma is a good conductor of electric current and responds well to external magnetic and electric fields.
But due to these particles, plasma is a good conductor of electric current and responds well to external magnetic and electric fields.
Plasmapart2.mp4Video: C. A. Garcia Soto
Activity 4. Use of plasma
Activity 4. Use of plasma
Plasma is very common in our everyday lives.
Plasma is very common in our everyday lives.
This video reveals some examples where plasma is used or where it occurs in nature.
This video reveals some examples where plasma is used or where it occurs in nature.
Plasmapart3_v2.mp4Video: C. A. Garcia Soto
Activity 5. Let's play a game
Activity 5. Let's play a game
A great way to learn and repeat is to play a game. The following game combines the knowledge about plasma that you have learned in this lesson, but it encourages you to explore even further. Use the Internet for help if needed.
A great way to learn and repeat is to play a game. The following game combines the knowledge about plasma that you have learned in this lesson, but it encourages you to explore even further. Use the Internet for help if needed.
Activity 6. Let us know what you think
Activity 6. Let us know what you think
We would like to hear your opinion about this lesson. Thank you for participating.
We would like to hear your opinion about this lesson. Thank you for participating.
Summary
Summary
Plasma is ionized matter which consists of positive ions and electrons. It is a good conductor of electric current.
It has wide application (neon signs, fluorescent lamps, TV screen, industry, medicine and science research) and is widespread in space (visible matter, lightning, aurora).
In the plasma ball, plasma streamer extends from the central metal sphere (high-voltage electrode) to an outer glass balloon (ground electrode). This moving steamer emits the light depending on gas used in ball.
Plasma is ionized matter which consists of positive ions and electrons. It is a good conductor of electric current.
It has wide application (neon signs, fluorescent lamps, TV screen, industry, medicine and science research) and is widespread in space (visible matter, lightning, aurora).
In the plasma ball, plasma streamer extends from the central metal sphere (high-voltage electrode) to an outer glass balloon (ground electrode). This moving steamer emits the light depending on gas used in ball.
If we bring a conductive object, like a light bulb, close to the plasma ball the electric field can induce a current in that object which then lights up.
If we bring a conductive object, like a light bulb, close to the plasma ball the electric field can induce a current in that object which then lights up.
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