Science Olympiad

Ariana uses balloons to investigate static electricity. Which of the following best explains what will happen when she brings two positively charged gallons closed to each other?

• The balloons will move apart

• The balloons will come together.

• One balloon will lose its charge.

• One balloon will gain a negative charge.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

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?

• color

• shape

• volume

• texture

Tags

NGSS.MS-PS1-4

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?

• Step 1

• Step 2

• Step 3

• Step 4

• Step 5

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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?

• Hail

• Rain

• Sleet

• Snow

Tags

NGSS.MS-ESS2-5

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?

• electrical

• friction

• gravity

• magnetism

Tags

NGSS.5-PS2-1

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?

• red

• blue

• green

• white

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

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?

• add ice to the cup

• stir the tea vigorously

• add more sugar to the tea

• put the tea and sugar in a larger cup

Tags

NGSS.MS-PS1-4

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?

• A ruler

• A thermometer

• A balance scale

• A measuring cup

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?

• crab

• fish

• manatee

• turtle

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?

• Neither sand nor table salt is magnetic.

• Sand and table salt are different colors.

• Table salt dissolves in water and sand does not

• Sand and table salt have particles of roughly the same size.