What have you learn about Science?

Science Attitudes

100

Science information is constantly changing.

True / False

True

Sun orbit around earth

Earth Orbit around Sun

200

Upon heating, 15 g of a substance decomposes and turns brown.

15g of substance.... qualitative or quantitative

quantitative

300

Despite no breakthrough in his research for a long time, Professor Xavier continued to do his best in his research.
Which attitude did he show in the learning of science?

perseverance

400

If you want to measure which if a plant grows well in a room or in the garden, name me one constant variable.

Type of plant
Size of Plant

Type of soil

Or other suitable answers

Lab Safety

100

You should tie your hair in the lab.

(True / False)

True

200

 Which action should NOT be done in the laboratory?

A      Close the air holes before lighting a Bunsen burner.

B      Point the mouth of a test tube away from anyone when heating a solution.

C      Pour unused reagents back into the correctly labelled bottles.

D      Wear goggles when heating or handling chemicals.

C

300

What is parallax error?

It's an error of perspective, where the pointer's position relative to the scale changes depending on your eye's position,

400

You can enter the Preparation Room if the teacher allows.

True / False

False

Density

100

What is the formula for density?

density = mass / volume

200

A plasticine floats when put in water.

A bigger plasticine of the same material will sink when put in water.

True / False

False

300

Which is heavier?  1 kg of steel or 1kg of feathers?

Both are have the same weight

400

Why do swimmers easily float when swimming in the Dead Sea but not in normal seas or ocean?

The salt content in dead sea is way more that normal sea that makes it denser.

Separation Technique

100

Name a separation technique to separate sand and water from a mixture of sand and water.

filtration

200

NAme a separation technique that you will use to separate salt from seawater.

Evaporation

300

NAme a separation technique you would use to separate water from sea water.

Distillation

400

Name a separation technique to separate steel filings from a mixture of salt and steel filings.

Magnetic separation

Light

100

How many colours does a white light consist of?

7

200

Which mirror can make an image bigger?
Concave?
Convex?

Convex

300

The line between angle of reflection and angle of incident is called?

normal

400

Angle of incident is not equal to angle of reflection.

True / False

True