CONNECT
Water is vital for life on Earth and is involved in various processes that keep our planet running. It can change form, going through different stages. When it’s solid, we call it solidification, like ice. When ice becomes liquid, melting occurs. When heated, water can turn into vapor, a process known as vaporization. This vapor, when in contact with cold air, condenses, forming water droplets, which we call condensation. These cycles are essential for maintaining water availability in various forms and places, ensuring its importance to all living beings.
Check out the video “States of matter for kids”:
REFLECT
• What happens when water is solid?
• What is the name of the process in which ice turns into liquid water?
• Why is water important for life on Earth?
BUILD
ACTIVITY PROPOSAL
GRASS IRRIGATOR
The grass irrigator is a very useful tool for keeping the lawn beautiful and healthy. It’s like an automatic watering can that helps to provide water to the grass efficiently. The irrigator can be installed in the garden and programmed to release water at specific times, ensuring the grass gets the right amount of water to grow strong and green. This is important because grass needs water regularly, especially during dry or hot periods. With a grass irrigator, it’s easier to care for the garden and keep the grass beautiful all year round.
CONTEXTUALIZE
Build an irrigator with the WeDo 2.0 Technology Kit.
Click the button to download the file.
Watch the video and see how the irrigator works:
ASSEMBLY PROGRAMMING
Make the irrigator move as shown in the video.
1. Create the programming as shown below:
2. Explain to the rest of the class how the irrigator worked.
CONTINUE
Answer the questions and share your answers with your classmates.
• What is the name of the box where we place the battery, and which serves as our brain?
• What do you need to do to make the prototype move?
• Did you find it difficult to program it?
After building, store all the materials used.