Forces: Intro

Sixth grade: https://www.proprofs.com/quiz-school/story.php?title=ntcwmzc2

Complete this quiz on forces and write notes in your notebook about every question.

Conductor or insulator

Experiment: Rocks

https://www.youtube.com/watch?v=pg_jKJFbA2A

Please watch the above video.

Conductors and Insulators

Examples of Conductors

• Silver is the best conductor of electricity. However, it is costly and so, we don’t use silver in industries and transmission of electricity.
• Copper, Brass, Steel, Gold, and Aluminium are good conductors of electricity. We use them mostly in electric circuits and systems in the form of wires.
• Mercury is an excellent liquid conductor that finds use in many instruments.
• Gases are not good conductors of electricity as the particles of matter are quite far away and thus, they are unable to conduct electrons.

Applications of Conductors

Conductors are quite useful in many ways. They find used in many real-life applications like:

• Mercury is a common ingredient in thermometer to check the temperature of the body.
• Aluminium finds use in making foils to store food and also in the production of fry pans to store heat quickly.
• Iron is common in vehicle engine manufacturing to conduct heat.
• The plate of an iron is made up of steel to absorb heat briskly.
• Conductors find their use in car radiators to eradicate heat away from the engine.

Examples of Insulators

• Glass is the best insulator as it has the highest resistivity.
• Plastic is a good insulator and it finds its use in making a number of things.
• Rubber is a common component in making tyres, fire-resistant clothes and slippers. This is because it is a very good insulator.

Applications of Insulators

Being resistive to flow of electron, insulators find application worldwide in a number of ways. Some of the common uses include:

• Thermal Insulators, disallow heat to move from one place to another. We use them in making thermoplastic bottles, in fireproofing ceilings and walls.
• Sound Insulators help in controlling noise level, as they are good in absorbance of sound. Therefore, we use them in buildings, conference halls, and buildings to make them noise-free
• Electrical Insulators hinder the flow of electron or passage of current through them. We use them extensively in circuit boards, high-voltage systems and also in coating electric wire and cables.

Conductors

Insulators

A conductor allows current to flow through it.

Insulators don’t allow current to flow through it.

Electric charge exists on the surface of conductors.

Electric charges are absent in insulator.

Conductor don’t store energy when kept in a  magnetic field.

Insulators store energy when kept in a magnetic field.

Thermal conductivity ( heat allowance) of a conductor is very high.

Thermal conductivity of an insulator is very low.

The resistance of a conductor is very low.

The resistance of insulator is very high

Copper, Aluminium, and Mercury are some conductors. 

Wood, paper and ceramic are some insulators.

Conductors are used in making electrical equipment. Insulators are used in insulating electrical equipment for safety purpose.

Question: How can you increase the conductivity of water?

Solution: Water is a good conductor of electricity. However, if you want to increase its conductivity, you can add some salt to it.

Conductors and Insulators

Biomes

Habitats

https://www.youtube.com/watch?v=Xj1ASC-TlsI

https://kids.nationalgeographic.com/explore/nature/habitats/

Food chain

https://www.youtube.com/watch?v=Vtb3I8Vzlfg

Solutions

Irreversible changes

Electroplating


Battery

Irreversible changes

Changes of state

Organ malfunction and diseases

Digestion

Measuring your Pulse

Main organs and functions

https://www.youtube.com/watch?v=zKSqNLT8kAA

BBC Learning - Major Organs of the Human Body

Riddles About Your Body
What am I?I am in your chest.I am the size ofyour fist. I pumpblood.

3 What am I? I am in your chest. You have two of me.
I help you breath.

4 What am I?I am in your tummyI digest food. I am pinkish.I look like a sack.

5
What am I? I’m in your head. I help you think. I am gray. I weigh about two pounds. 

6 What am I? I’m in your chest. I beat all of the time. I pump your blood. 

7 What am I. I’m in your chest. I help you breath. I need air
What am I? I’m in your chest. I help you breath. I need air. You have two of me. What am I?

8 What am I? Your Bones I am white. I’m also under your skin.
I also help you move.I give your body shape.You have 206 of me.

9 Your Muscles What I am? I’m in your legs and arms.
I am all over your body too.I help you move.I help give you shape.I can grow with exercise.What am I?

10 Your Brain What am I? I tell your body what to do. I am in your head.
I am very important to your body.I send and get messages.

11 Your HeartWhat am I? I am in your chest. I pump blood. I beat fast and slow. I go fast when you exercise. I go slow when you sleep. I have chambers. What am I?

12 What am I. I help you breath. I close when you smoke
What am I? I help you breath. I close when you smoke. I turn black when you smoke. What am I?Your Lungs

13 SkullWhat am I? I protect your brain. I am hard. I am white. I am a bone in your head. What am I?

14 What am I. 1. I can eat your bones or your body. 2. I can be any size
What am I? 1.I can eat your bones or your body. 2.I can be any size. 3.I am dangerous. What am I?Answer: Tumor

15 What am I. 1. I am round. 2. I am in your head. There are two of me. 3
What am I? 1. I am round. 2. I am in your head There are two of me. 3. I can be almost any color. 4. I help you see What am I?Answer: Eyeballs

16 What am I. 1. I am pinkish-red 2. I am very, very small. 3
What am I? 1.I am pinkish-red 2. I am very, very small. 3. I am everywhere in your whole body. 4. There are red ones and white ones. What am I?Answer: Blood cells