Diagnostic test.

KNOWLEDGE AND UNDERSTANDING.

1. Identify the equipment above according to the sequence shown. 4 marks

• a. Measuring tape - balance - graduated cylinder - thermometer.

• b. Beaker - Thermometer - Balance - Measuring tape.

• c. Thermometer - Balance - Beaker- Measuring tape.

Identify the use of the equipment shown in image above. 2 marks.

• a. The beaker is used to measure the volume of liquids in large quantities and the thermometer is used to measure temperature.

• b. The Beaker is used to measure length and the thermometer is used to measure mass.

• c. The are used to measure temperature.

Identify the diagram that represents a plant cell. 3 marks.

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INQUIRING AND PROCESSING

Class 4 is thinking about how they grow. Observe and determine which graph shows the obtained results correctly.

3 marks.

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According to the results obtained, how do you thing has Pedro changed overtime? 3 marks.

• a. Pedro has not changed, he is still been a little boy.

• b. Pedro has changed in size and physical appereance. He is taller than before and may looks as a teenager.

Read the bar graph above and decide which of the data table below shows correctly the information. 3 marks.

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REFLECTION

1. River pollution is bad for the environment, but wastes and chemicals are constantly put in it.

Read the staments below and decide which could be the best solution to fix that issue (problem). 3 marks

• a. We could continue throwing different materials into the rivers. Waste materials don´t cause damage for the environment.

• b. We could recycle at home to help the environment but, nobody could have control of the chemicals that flow in it.

• c. We could start recycle at home and the goverment could control the factories and industries that use chemical to care for the environment.

1. Read the passage below. Analyze about the amount of plastic waste worldwide according to the text and answer the question below. 5 marks.

Plastic carrier bags that we use to bring home our shopping take centuries to decompose when thrown away. It is estimated that between 500 million and 1 trillion plastic bags are used each year worldwide.

Plastic bags float easily in air and water and can travel long distances. Plastic litter causes many thousands of marine mammals and seabirds to die each year. Some cities have banned plastic bags to help protect the environment.

The Blackwell family buy their shopping once a week. They fill 12 plastic bags with their weekly shop.

How many plastic bags do they use after 10 weeks?

4 marks.

• a. 12 bags

• b. 1200 bags.

• c. 120 bags.

• They don´t use plastic bags.