Science QSA 1 Review

The first step to designing an investigation is...

• form a hypothesis

• come up with a testable question

• gather all needed equipment

• publish your results

A hypothesis is ____.

• clear results from an investigation

• a question that is not testable

• another name for an investigation

• an educated guess about what will happen

In designing an experiment, how many things can change?

• only one

• everything can change

• two

• it depends

Solubility means _____.

• ability to slow down energy flow

• ability to be attracted to a magnet

• ability to dissolve in water or other liquids

• ability to float

Which list contains ONLY things that are not magnetic?

• iron nail, steel paper clip, aluminum can

• cotton ball, cork, plastic ball

• rubber band, glass marble, refrigerator door

• wax candle, steel spoon, cotton swab

A student placed a wooden block in a container of water, and the wooden block floated. Why?

• It was less dense than the water.

• It was more dense than the water.

• It had the same density as the water.

• There was too much water in the container.

__________________ are the best conductors of heat or electrical energy.

• Liquids

• Plastics

• Metals

• Things made of wood

If you added 5 g of strawberry drink mix to 100 g of water, what physical properties will change?

• taste and smell only

• temperature and color only

• taste, smell, color, temperature only

• taste, smell, color, and mass only

Mechanical energy is the energy of _________.

• heat

• motion

• light

• chemicals

What kinds of energy are produced by the sun?

• electrical and light

• light and thermal

• light and mechanical

• thermal and sound