Teacher: SAMAH ADDAN SUBJECT: SCIENCE Title/Topic: Elements, mixtures and compounds

Learning objectives:

Students will be able to describe scientifically elements compounds and mixtures.

Students will be able to express their understanding of elements and compounds in word equations.

Using simple models students will be able to identify elements, mixtures and compounds.

Students will be able to describe how elements combine to make compounds that have different properties and that mixtures retain many of the properties of its components.

Literacy:

When students are answering questions, make sure they write proper sentences.

Key words: Elements, atoms mixtures, compounds, separation, chemically combined.

Starter Activity

15 minutes

Use PowerPoint

Give two students in the front to hand-out worksheets.

Task 1: Give students 1 minute to discuss with each other and write down what they understand the definition of element, mixture and compounds are.

While students are doing the task, teacher does the register.

Using PowerPoint: reveal the answers and ask for a show of hands if students got it correct. Tell them to correct their definitions.

Task 2: (Give students 5 minute) using a copy of the periodic table, students will be given a list of compounds and molecules and they will find the elements they are made up of. Then they will group the elements into which ones they can find and which they cannot find.

Main:5 minutes

15 minutes

Using PowerPoint show a series of examples of elements, mixtures and compounds on the board. Allow students to identify the image and explain how they know that is the case, and then reveal answer.

Divide the students into groups of three and give out Legos.

Students should use the Legos to model the elements and compounds on their task sheet 3.

For evidence of progress and attainment, teacher will go around the class and see whatever the students made and ask them to explain randomly.

10 minutes

5 minute

Plenary:10 minutes

Demonstrate mixing iron filling and sulphur and using their individual properties (iron – magnetic) show how mixtures can be separated.

Then demonstrate reaction of iron filling and sulphur and explain how the new compound formed has completely different physical property.

As precaution students will be told not to stare at the burning of the iron and sulphur directly.

Students should write explanation why a chemical reaction is needed for a new compound to be formed and not mixtures as seen in the demonstration.

Give 5 minutes to pack away the Legos and hand out game cards with different words and picture examples on everything they encountered during the lesson.

To review learning, students will be asked to hold up their individual cards and will be assessed how well they understand the concepts.

Resources Worksheets (Task sheets 1-3 and homework sheets)

Legos

Periodic tables

Demonstration apparatus for mixing and burning Iron filling an sulphur

Colourful cards for elements, mixtures and compound game.

Homework Hand out worksheets on elements, mixtures and compounds.