Stickler Week 17

Front

What are conductors?

Back

Materials that allow electricity or heat to flow through them easily, such as metals.

Front

What are insulators?

Back

Materials that do not allow electricity or heat to flow through them easily, such as rubber or wood.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without changing its chemical composition.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

Is spoiling food a physical or chemical change?

Back

Chemical change.

Front

What property determines whether an object sinks or floats?

Back

Density.

Front

What is density?

Back

The mass of an object divided by its volume; it determines if an object will float or sink in a fluid.

Front

How can you separate iron filings from flour?

Back

Using magnetic attraction.

Front

What is magnetic attraction?

Back

The force that pulls certain metals, like iron, towards a magnet.

Front

What is filtration?

Back

A process that separates solids from liquids or gases using a filter.