Science CBA Review

Students collected data on several objects and recorded the data in a T-chart.
Which object would replace the question mark to complete the chart?

• Glass Marble
• Rubber Ball
• Aluminum Can
• Sock

Boiling water was placed in containers made of four different materials.
Based on the data, which material was the best conductor of heat?

• Material 1
• Material 2
• Material 3
• Material 4

Water and oil are poured into the same container. An object is added. The materials are allowed to sit and their final positions are shown in the illustration.
What is the most reasonable conclusion that can be made from this test?

• The object is less dense than water.
• Oil has the highest density.
• The object has the lowest density.
• Water is less dense than oil.

The table shows how the temperature changed over six minutes of water samples kept in four different containers.
Which container was made of the best heat insulator?

• 1
• 2
• 3
• 4

Students placed three spheres in a tank of water.Which of the following can be concluded based on the results?

• Sphere 1 is more dense than Sphere 3.
• Sphere 2 is less dense than Sphere 3.
• Sphere 3 is less dense than Sphere 2.
• Sphere 2 is less dense than Sphere 1.

Students found four liquids in containers labeled only with the boiling points of the liquids.
Based on this information alone, which liquid could possibly be water?

• 1
• 2
• 3
• 4

A student observes an ice cube. The ice cube slowly changes from a solid to a liquid state.
From this observation, it can be concluded that the minimum temperature the ice cube reached had to have been what?

• 0°C
• 32°C
• 85°C
• 100°C

A group of students put some water in a pan and heated it on a hot plate. After six minutes there was nothing left in the pan. The water evaporated because it reached a temperature of -

• 0° C
• 50° C
• 100° C
• 200° C

Students have beakers of water at different temperatures.
What will students discover when they boil the three samples of water?

• The water in Beaker 1 will boil fastest.
• The water in all the beakers will boil at 100°C.
• The water in Beaker 3 will boil at 90°C.
• Beaker 2 will boil at the highest temperature.

A student is given a sample of water at the temperature shown.
The student will have to increase the temperature of the water by how many degrees before it will boil? Record your answer in the grid.

• 71.0
• 70.0
• 29.0
• 30.0