Science Quiz

Science mainly tests ideas by:

• doing repeatable experiments

• magic tricks

• reading only stories

• copying others

A qualitative observation is:

• using words like 'rough' or 'bright'

• measuring 25.0 cm

• writing a number with a unit

• only using a calculator

A fair test changes:

• only one independent variable

• many variables at once

• no variables at all

• the measuring units

Air resistance mainly depends on:

• shape and surface area

• color of the object

• brand name

• who drops it

Average speed equals:

• distance ÷ time

• time ÷ distance

• mass ÷ time

• distance × time

Energy is best described as:

• the ability to cause change

• only heat

• only electricity

• mass of an object

What do we directly feel with our skin?

• heat flow (energy transfer)

• exact temperature

• mass

• electric charge

Melting is a change from:

• solid to liquid

• liquid to gas

• gas to liquid

• solid to gas

An object floats in water if:

• its density is less than water

• it is heavy

• it is light color

• it moves fast

A shadow becomes wider when:

• the object is closer to the lamp

• the lamp is farther away

• the screen is closer to the lamp

• the room is darker