10-Day Grade 5 STAAR Science

ReviewDay 1 – Matter and Energy

Readiness TEKS 5.5A

Supporting TEKS 5.5B and 5.5C

What is Stuff Made Of?

• All things are made of matter.

• Mass is the amount of matter in an object.

• You can describe the physical properties of matter like color, smell, taste, texture, and how it conducts heat or electricity.

Describe the Physical Properties of Sugar

• Taste?• Smell?• Texture?• Color?• Conducts Heat?• Conducts Electricity?

Physical Properties

• Some materials will retain their physical properties even when mixed together.

• Consider a mixture of sand and iron filings. Does it retain its physical properties? Can you separate the mixture? How?

Magnetism

• Magnetism is also a physical property of metals like iron, steel, and nickel.

• A magnet can attract things like iron filings, paper clips, and staples, but not glass, plastic, wood, or rubber.

Solubility

• Dissolving means to mix evenly in a liquid like water.

• What are some things that dissolve in water?– salt, sugar, etc.

• What are some things that don’t dissolve in water?– sand, metal filings, etc.

Temperature

• Temperature measures how warm something is. The higher the temperature, the more the particles in matter move.

• In science, we primarily use the Celsius scale.

• Water freezes - 0˚C• Water boils - 100˚C

Density: Will it Sink or Float?

• Density is the amount of matter in a certain amount of space.

• If something has greater density than water, it will sink.

• An object with lesser density than water will float.

Density: Will it Sink or Float?

• Will a key sink or float? Does it have higher or lower density than water?

• How about a block of wood? Does it have higher or lower density than water?

States of MatterMore Heat Less Heat

No Definite Shape No Definite Shape Definite Shape

No Definite Volume Definite Volume Definite Volume

Freezing

Melting

Condensation

Evaporation

Conductors and Insulators

• If a material allows heat or electricity to easily pass through it, it is a conductor.

• If a material doesn’t allow heat or electricity to pass through it, it is an insulator.

Conductor or Insulator?

Classify these items as conductors or insulators of heat and electricity.