sci 7

What is the unit for measuring luminous intensity?

• Candela

• Kelvin

• Ampere

• Mole

What factors affect solubility?

• Pressure

• Temperature

• Measurement

• Mass

What is the first step of scientific method?

• Making hypothesis

• Observation

• Data analysis

• Questioning

Particles in gases have stronger kinetic energy than solids

• true

• False

JJ Thomson is a scientist who discovered the subatomic particle____________________.

"Ice melts depending on the temperature of the room" identify the independent variable

• Temperature of the room

• Melting ice

• Room

• Melts

How many significant figures are present on these values: 0.0203000. Write your answer in number form

Dalton's atomic model is known for its spherical shape because of the absence of discovery about the subatomic particles during his time.

• True

• False

Aristotle proposed that all kinds of matter in nature are composed of four basic elements, fire, water, earth, and air.

• True

• False

The process of reducing the concentration of solutions is called________________