Present perfect I.

 Let's talk about the past in an uncertain time or a recent past. Learn about the present perfect.

Watch this video.

Keep on learning and practice with these stories.

     

Watch this one for further explanations and examples.

Time to practice what you have learnt.

• Affirmative and negative sentences.
• Practice some irregular verbs.
• Affirmative, negative and questions.

Time to practice a bit more. This time singing.

       

Time to play. Learn and enjoy.

    

Sound, Light and Heat

Sound energy

How is sound produce? Watch and learn.

This time watch to learn in which medium does sound travel.

  

How does light travel? Watch and learn about light.

Light can reflect or refract depending on the surface it hits. Watch and learn about it in this video.

Look at this nice experiment about colours.

Practice your learning with these on-line worksheets

• Energies
• Light energy
• Light energy I