Front

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? Options: Glass marble, Rubber eraser, Wool sock

Back

Aluminum can

Front

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

Back

material 3

Front

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?

Back

The object is less dense than water.

Front

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?

Back

Container 2

Front

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.

Back

Sphere 3 is less dense than Sphere 2.

Front

A group of students have a block of aluminum 10 cm by 10 cm by 10 cm. They found a smaller block of aluminum that is only 1 cm by 1 cm by 1 cm. Which property do we expect to observe in the smaller block? The smaller block will -

Back

conduct electricity

Front

Based on observations of four sealed containers holding different substances, which container most likely holds only gas?

Back

Container 3

Front

Students filled a graduated cylinder with water and oil. Next they placed two samples, Substance X and Substance Y, in the same graduated cylinder. The illustration shows the final positions of all these materials.
What conclusion can be drawn from this observation?

Back

Substance X is less dense than water.

Front

Which statement identifies a property that could be used to classify objects investigated using a hand lens, a magnet, and a beaker containing water? Options: Density can be used to separate objects that sink in water from objects that do not., Magnetism can be used to separate objects that are attracted by a magnet from objects that are not., Solubility can be used to separate objects that dissolve in water from objects that do not., Physical state can be used to separate objects that are solids from objects that are not.

Back

Density can be used to separate objects that sink in water from objects that do not.

Front

Objects that blow into a swimming pool or that are dropped into the pool by swimmers need to be removed. These objects include foam cups, keys, and coins. Which of the following explains a useful method for removing some of these objects?

Back

The foam cups are less dense than water, so they can be removed from the surface with a pool cleaning net.