Matter Around Us Lesson

Matter Around Us Lesson

by David Blankenship

Open Ended

Type your response in the box.

Most matter in the natural world is a mixture of substances. Consider seawater, dirt, and plants. Explain why each of these examples of matter is a mixture.

Multiple Choice

Classify the materials based on their composition.

• substance

• homogeneous

  mixture

• heterogeneous mixture

Multiple Choice

Classify the materials based on their composition.

• substance

• homogeneous

  mixture

• heterogeneous mixture

Multiple Choice

Classify the materials based on their composition.

• substance

• homogeneous

  mixture

• heterogeneous mixture

Multiple Choice

Classify the materials based on their composition.

• substance

• homogeneous

  mixture

• heterogeneous mixture

Multiple Choice

Classify the materials based on their composition.

• substance

• homogeneous

  mixture

• heterogeneous mixture

Multiple Choice

Classify the materials based on their composition.

• substance

• homogeneous

  mixture

• heterogeneous mixture

Multiple Choice

Classify the materials based on their composition.

• substance

• homogeneous

  mixture

• heterogeneous mixture

Multiple Choice

Classify the materials based on their composition.

• substance

• homogeneous

  mixture

• heterogeneous mixture

Multiple Choice

Classify the materials based on their composition.

• substance

• homogeneous

  mixture

• heterogeneous mixture

Multiple Choice

Classify the materials based on their composition.

• substance

• homogeneous

  mixture

• heterogeneous mixture

Multiple Choice

Classify the materials based on their composition.

• substance

• homogeneous

  mixture

• heterogeneous mixture

Multiple Choice

Classify the materials based on their composition.

• substance

• homogeneous

  mixture

• heterogeneous mixture

Multiple Choice

Classify the materials based on their composition.

• substance

• homogeneous

  mixture

• heterogeneous mixture

Multiple Choice

Classify the materials based on their composition.

• substance

• homogeneous

  mixture

• heterogeneous mixture

Multiple Choice

Salt water is classified as a homogeneous

mixture. This kind of mixture can’t be separated by

       _____________>

• chromatography  

• distillation  

• filtration  

• reverse osmosis

Multiple Choice

The first ocean water purification method requires heating. This method,

       ____________________

, is based on the fact that water boils at a lower temperature than salt.

• chromatography  

• distillation  

• filtration  

• reverse osmosis

Multiple Choice

The method that does not require heating is

       ____________________

, this has become more common in recent years.

• chromatography  

• distillation  

• filtration  

• reverse osmosis

Multiple Choice

Some parts of the world have contaminated water that causes diseases. Contaminated water has microorganisms, and forms a

       heterogeneous  mixture. This kind of mixture can be separated by

      ________________.

• chromatography  

• distillation  

• filtration  

• reverse osmosis

Multiple Select

They good conductors of electricity. They are extensively used in applications that require high conduction. For example, copper is used in electrical wiring.

• Metal

• Salt

• Acid

Multiple Select

Solutions that range from 0 to 16 on pH Scale. Good conductors of electricity.

• Metal

• Salt

• Acid

Multiple Select

In solid form don’t conduct electricity. However, when melted or dissolved in water, salt conducts electricity.

• Metal

• Salt

• Acid

Multiple Choice

Metals are good conductors of current.

• state

• melting point

• boiling point

• electrical conductivity

• acidity

Multiple Choice

Water changes from solid to liquid at 0°C, which is equivalent to 32°F.

• state

• melting point

• boiling point

• electrical conductivity

• acidity

Multiple Choice

Vinegar has a pH of 3.0.

• state

• melting point

• boiling point

• electrical conductivity

• acidity

Multiple Choice

The mass of a cubic centimeter of iron is 7.87 grams.

The substance is a yellow gas.

Ethanol becomes a gas at 78°C, which is equivalent to 173°F.

• density

• melting point

• boiling point

• electrical conductivity

• acidity

Multiple Choice

The mass of a cubic centimeter of iron is 7.87 grams.

• state

• density

• boiling point

• electrical conductivity

• acidity

Multiple Choice

The substance is a yellow gas.

• state

• melting point

• boiling point

• electrical conductivity

• acidity

Multiple Choice

Ethanol becomes a gas at 78°C, which is equivalent to 173°F.

• state

• melting point

• boiling point

• electrical conductivity

• density