Grade 3: Magnets

What is a Magnet? A magnet is an object that produces an external magnetic field.
A bar magnet has two ends:the north pole and the south pole.The magnetic forces are highest at the two ends.
This week we have been talking about what magnets are and which metallic materials are magnetic and which are not.In the link below you will practice more:

click here :Practicing with magnets

Grade 4: Characteristics of materials

Here you have our last class about characteristics of materials.Review and practice with this slideshare.The video on page number 4 about shadows is below. Have fun! :D

Opaque materials

View more presentations from Deysi Lucho.

Grade 3: Dissolving Experiment

It was amazing for my grade 3 students to experiment how gelatine dissolves in water at different temperatures. For this experiment they used these materials:

1.    Three transparent plastic cups

2.    Some gelatine

3.    Water at three different temperatures ( cold, warm, and hot )

They could observe that gelatine dissolved faster in hot water. They also enjoyed looking and comparing this first cup with the other two cups. Nice work kids!

Dissolving experiment on PhotoPeach