Science Pass Sample

Which of the following item is the best method to put out a fire in a person's hair or clothes?

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Name the hazard symbol.

• Biohazardous

• Corrosive

• Explosives

• Radioactive

The figure shows an electronic balance measuring the mass of a beaker before and after adding liquid into it.

Which of the following best describes the density of the liquid?

• 0.75 g/cm³

• 62.5 g/cm³

• 84.5 g/cm³

• 1.35 g/cm³

The figure shows a transparent grid with squares of size 1 cm² on top of a leaf. Estimate the area of the leaf that contains the pigment chlorophyll.

• 1 cm²

• 3 cm²

• 6 cm²

• 9 cm²

Tags

NGSS.MS-LS1-6

A fresh egg will sink to the bottom of a saucepan of water, while a stale egg will rise to the surface of the water as shown in the figure.

Which of the following best explains the behaviour of the stale egg?

• Some of the contents of the egg escapes which makes it lighter.

• The density of the egg increases as it goes stale.

• The density of the egg decreases as it goes stale.

• Some of the egg shell falls off which makes it lighter.

Tags

NGSS.MS-PS1-2

A cube of mass 128 g has a density of 2 g/cm³.

What is the length of each side of the cube?

• 4 cm

• 8 cm

• 64 cm

• 256 cm

Which of the following four thermometers would be most suitable for measuring body temperature?

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Which one of the following processes involves getting rid of toxic products from the body?

• Absorption

• Digestion

• Excretion

• Nutrition

Respiration is one of the seven characteristics of living things. Which of the following best describes respiration?

• Ability to produce new individuals.

• Reaction to changes in the environment.

• The way living things get energy from food.

• The way that all living things are made of cells.

Tags

NGSS.MS-LS2-3

Study the particles in W, X, Y and Z in the figure. Which of the following best describes the particle arrangements in the figure?

• W - Compound, X - Compound

  Y - Element, Z - Mixture

• W - Compound, X - Element

  Y - Mixture, Z - Mixture

• W - Mixture, X - Element

  Y - Compound, Z - Compound

• W - Mixture, X - Element

  Y - Compound, Z - Mixture

Tags

NGSS.MS-PS1-1