Post Test Revision

Multiple Select

Science is a study that involves systematic ____________ and ___________ of natural phenomena.

• opinions

• observations

• evidences

• experiments

Match

Match the following

Harmful/Irritant

Radioactive

Explosive

Corrosive

Flammable

• Harmful/Irritant

• Radioactive

• Explosive

• Corrosive

• Flammable

Multiple Select

Diagram shows toxic chemical symbol. Which are examples of toxic chemicals?

• Sodium chloride

• Mercury

• Chlorine gas

• Uranium

Multiple Choice

Syafiq has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Multiple Choice

If an object has a density of 0.6 g/cm³ and you put it into water, will it sink or float?  

• sink
• float

Multiple Choice

If an object has a density of 3.6 g/cm³ and you put it into water, will it sink or float?  

• sink
• float

Multiple Choice

What are the 2 products of photosynthesis? The products are the things made in the process of photosynthesis.

• water, sunlight

• glucose, carbon dioxide

• oxygen, glucose

• sunlight, oxygen

Multiple Choice

Which part of the cell contains water and food materials?

• A

• B

• C

Multiple Select

Picture shows structures of stomata that can be found in leaves. What is its function?

• To allow exchange of oxygen and carbon dioxide gases.

• To allow minerals go in and out from the leaves.

• To produce glucose (starch)

• To allow water vapour goes out from leaves.

Multiple Choice

In green plants, photosynthesis process happens in what type of cells?

• Mesophilic cells

• Palisade cells

• Guard cells

• Epidermal cells

Multiple Choice

When the glass containing a piece of paper is inverted into the basin of water as shown in the diagram above, no water enters the glass. What is your inference?

• Air has density.

• Air has mass.

• Air is matter.

• Air occupies space.

Multiple Choice

5 cm³ of common salt powder are dissolved in 95 cm³ of water in a measuring cylinder. The total volume of the mixture is less than 100 cm³. Which of the following best explains the result?

• Common salt particles shrink when dissolving in water.

• Common salt particles have combined with the water particles.

• Common salt particles group themselves together in water.

• Common salt particles have moved into the spaces between the water particles.

Multiple Choice

If the environment gets cold, we will often shiver in order to:

• keep body temperature the same as the external temperature
• decrease body temperature
• increase body temperature
• regulate blood pressure

Multiple Choice

Dry ice used in ice cream box to maintain its coldness. It can undergo sublimation process to form a gas. Which statement is correct?

• heat is absorbed during this process.

• heat is released during this process.

Multiple Choice

This science phenomenon is called

• effusion

• transpiration

• diffusion

• immersion

Multiple Choice

The picture shows diffusion of bromine gas ,from bottom part to upper part of gas jar. The particles from bottom part is _____ concentration area ,move into empty spaces of ____concentration area (upper part).

• low , high

• high , low

Poll

How do you find Science so far?

• Easy :)

• Not so easy :]

• Difficult : /

• Very difficult :(