revision unit 1 to 4

Which of the following statement is not a science room’s rules?

• Tidying the science room before left

• Conducting the experiment as instructed by teacher

• Eats and drinks in science room

Queue up before entering the science classroom

• True

• False

Which of the following is the correct action?

• Throw rubbish into the sink plastic

• Store test tubes in the test tube rack

• Put the measuring cylinder on an uneven surface

• Leave long hair untied during an experiment

What action should be done by Sara?

• Leave the broken apparatus on the table.

• Report to the teacher immediately.

• Throw all broken apparatus into the sink.

How many times should you visit the dentist per year?

• 1
• 2
• 3
• 4

An adult has ___ teeth

• 22

• 32

• 42

• 30

When does a baby usually start to grow teeth?

• one year

• 10 months

• 6 months

• 2 years

What are the three types of human teeth?

• Incisors, canines, molars

• Incisors, felines, molars

• Incisors, canine, fangs

The diagram above shows a cross section of a human tooth. Name the structure labeled C and D.

• Enamel and dentine

• Dentine and gum

• Gum and nerves

• Nerves and blood vessels

The diagram above shows a cross section of a human tooth. Name the structure labeled A and B.

• Enamel and dentine

• Dentine and gum

• Gum and nerves

• Nerves and blood vessels