Practice Test C - Cumulative Benchmark Test

Dina knows that water melts and freezes at the same temperature: 0 °C. She knows that it boils at 100 °C. Which is the most likely temperature of a glass of water with ice?

• 0 °C

• colder than 0 °C

• warmer than 100 °C

• between 0 °C and 100 °C

Mehmet placed a thermometer near a light bulb as shown in the picture below. What will happen when he turns on the light?

• The liquid in the thermometer will glow.

• The liquid in the thermometer will go up.

• The liquid in the thermometer will go down.

• The liquid in the thermometer will stay the same.

Madelyn and Charles collected data about the heights of students at a school. Madelyn recorded the heights of 16 boys on the basketball team. Charles recorded the heights of 16 students in a class. They made the graphs below to show their data. Madelyn says that most students are 180–184 cm tall. Charles says that most students are 170–174 cm tall. What could explain their different findings?

• They collected different amounts of data.

• They collected data from two different groups.

• They used different recording techniques.

• They used different kinds of measurement tools.

What kinds of energy are you observing when you see lightning and hear thunder?

• light energy and heat energy

• light energy and sound energy

• heat energy and electrical energy

• heat energy and mechanical energy

The first picture below shows a bird about to eat. The second picture shows the same tree and bird 15 minutes later. All of the beetles on the tree are exactly the same except for their color. One type of beetle is dark in color. The other type is lighter in color. It is the same color as the tree. What can you infer from the pictures?

• This kind of bird eats many different kinds of insects.

• The lighter beetle is harder for the bird to find and eat.

• This kind of beetle can be found only on one kind of tree.

• The darker beetle is better at hiding than the lighter beetle.

The table below gives the masses and volumes of different objects. | Object | Mass (grams) | Volume (cubic centimeters) | |-------------------|--------------|---------------------------| | brick | 2,000 | 1,200 | | dry sponge | 50 | 1,250 | | wet sponge | 1,100 | 1,300 | | full water bottle | 1,000 | 1,000 | Which object would need the greatest force to overcome the force of gravity acting on it?

• brick

• dry sponge

• wet sponge

• full water bottle

You can see an object in space when light from the object reaches Earth. Some objects produce their own light. Others only reflect light. Which object produces energy that it gives off as light?

• asteroid

• moon

• planet

• sun

A duckbill platypus is a mammal that has a leathery bill, brown fur, a flat tail like a beaver’s, and webbed feet. It spends a lot of time in water and lays eggs. Which characteristic of the platypus is unusual for a mammal?

• having fur

• laying eggs

• having a flat tail

• spending time in water

The word heat can have different meanings in different sentences. Scientists have a specific meaning for the word heat. Which sentence uses the word heat the way a scientist would use it?

• Sarah used the oven to heat her pizza.

• The heat moved from the fire to the marshmallow.

• Thomas turned up the furnace to heat his cold house.

• Marcus used the microwave to heat his cold cup of tea.

Hardness is a property that describes how hard or soft a material is. To test materials for hardness, a scientist will see whether they can be scratched or dented. A very hard material will leave a scratch on a softer material.

• Sandpaper is rough.

• Diamonds can cut glass.

• Copper is shiny and brown.

• Salt crystals have a cube shape.