Science STAAR Review 6

Which change would most likely cause sugar to dissolve the fastest in water?

• Decreasing the temperature of the water
• Using larger pieces of sugar
• Stirring the mixture rapidly
• Using less water

Which tool is used to measure temperature?

• Celsius thermometer
• Stopwatch
• Pan balance
• Meter stick

The thermometer below shows the...

• Melting point of water
• Boiling point of water
• Condensation point of water
• Precipitation point of water

If the temperature of a cup of water measures 100 degrees Celsius. The water is...

• Cold
• Warm
• Boiling
• Freezing

Which substances, when mixed together, maintain their original physical properties?

• gravel, sugar, water
• wood chips, water, sand
• sand, sugar, water
• water, pepper, salt

What forms of energy are being produced by the circuit below?

• Thermal and mechanical
• Sound and light
• Thermal and light
• Light and mechanical

All of the following are examples of containers filled with mixtures except?

• A jar filled with trail mix
• A glass filled with water
• A bowl of cereal and milk
• A cup of fruit salad

Which tools are the best for separating a mixture of pepper, iron fillings, and water?

• Hot plate and sieve
• Tweezers and filter
• Filter and magnet
• Tweezers and hot plate

A beaker contains a mixture of salt, sand, and gravel. Which substance is soluble in water?

• Salt
• Sand
•  Gravel
• All 

Lenses inside a camera bend and decrease the size of an image. This is an example of...

• Light being absorbed
• Light being refracted
• Light being reflected
• Light being transmitted