Margot measured 400 milliliters (mL) of waters using a beaker. She then heated the water until it boiled. She poured the boiling water back into the beaker and saw that there was less water than she had before.

What property changed after the water was boiled?

A student uses the following steps to find the temperature at which water boils.

Step 1: Pour 1 liter of water into a heavy copper pot.

Step 2: Put the copper pot on the stove and heat he water.

Step 3: Turn off the stove after the water starts to boil.

Step 4: Wait 5 minutes for the steam to clean and then measure the temperature using a thermometer.

The student's teacher said that there was a problem with one of the steps. With which of the steps did the teacher most likely have a problem?

Jenny measures the outside temperature as 16 degrees Celsius (°C), 61 degrees Fahrenheit (°F). She observes precipitation falling from the clouds in a solid form. What type of precipitation is Jenny most likely observing?

Susanna uses a rope to lower a bucket in order to get water from a well near her house. Which force allows the bucket to be lowered?

A radiometer is a device with fins that spin when light energy strikes them. A picture of a radiometer is shown at the left. As part of an experiment, a light source was placed 50 centimeters (cm) from a radiometer. The light sources gave off four different-colored lights for 30 seconds (s) each. After each color of light was turned off, the amount of time the fins on the radiometer spun was recorded. The results are shown in the table below. Which color of light provides the greatest amount of light energy according to data in the table?

Regina is going to dissolve a teaspoon of sugar in a cup of hot tea. What could Regina do to dissolve the sugar more quickly?

A student needs 200 milliliters of salt water for an experiment. Which of these tools would be BEST to measure the volume of the solution?

The organisms shown below live in or near bodies of water. Some are classified as vertebrates and some as invertebrates. Which organism is classified as an invertebrate?

As part of a science test, Mrs. Gleason asks her students to separate the sand from a mixture of table salt and sand. Which of the following facts would be most useful in separating the table salt and sand?

Plants are classified according to their structures. The plant pictured below reproduces without seeds and has simple tubes for transporting water. In which group of plants would this plant be classified?

Workers from a moving company are lifting a mattress through a large upper window. Which of thefollowing correctly identifies the forces acting on the mattress?

A teacher wanted to demonstrate an experiment to his class. He needed a container that was see-through, safe to use with most chemicals, and could be heated over a flame. Which of these would be the best material for the container?

Erosion and weathering can both cause changes to the surface of Earth. Which of the following happens only because of erosion and NOT because of weathering?

Mike and Sophia each have an empty shopping cart with the same mass. They push their shopping carts straight out in front of them at the same time. Mike’s cart rolls one meter while Sophia’s cart rolls two meters. Which of the following is true?

Which of these is a scientific question?

Roger collected four rock samples and wrote a description of how each was formed. Which of the following rocks that Roger collected is a metamorphic rock?

Mr. Washington mixed iron filings with sand. Then, he asked his students to separate the iron filings from the sand. Which of the following is the best tool to use to separate the iron filings from the sand?

Susie and Angie are playing baseball on a calm day. Susie pitches the ball, and Angie bats it back. Whichof the following best describes what happens when the bat hits the ball?

Alea learned in science class that one form of energy can be changed into other forms of energy. In which of the following situations does electrical energy become light and heat energy?

During an experiment, a student measures 25 g of salt. The salt is dissolved in 500 mL of water. The salt solution is heated, and its temperature is kept at 35°C of the following tools would not be used to perform the experiment described?

Which variable must stay the same in order to find out which materials conduct electricity?

Look at the picture of a tool. How does the tool help scientists?

This graph shows the average temperature of a city each week for five weeks.

If the temperature keeps falling at the same rate, by which week will the temperature reach 40°F?

Amber noticed that when she breathed on a cold mirror, the glass fogged up. Which of the following best explains why this happened?

A student designs a toy boat by using a sponge for the body of the boat and a piece of cloth tied to a pencil for the sail and mast. He then places the boat in a container filled with water. The boat stays afloat for about 30 minutes before sinking. Which of these possible solutions will most likely improve the results of this experiment by increasing the time that the boat stays afloat in the water?

The number of apples on a tree at school has been decreasing every year as shown in the graph. If the number of apples on the tree each year continues to follow the same pattern shown in the graph, how many apples will there be on the tree in 2008?