Science Bowl Elimination Round

A student combined powdered paint with water to make a small amount of a blue liquid paint mixture. The student left the paint mixture in a open container. Several days later the student found the container and observed that changes had occurred. What most likely happened to the mixture?

• The container was empty after the mixture evaporated into the air.

• The paint evaporated, leaving only clear water in the container.

• The water evaporated, leaving only a dry blue solid in the container.

• The liquid paint mixture was lighter in color after some water evaporated.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Some students put two ice cubes on separate plates. One ice cube had a mass of 80 grams. The other had a mass of 40 grams. Which result would be the same for both ice cubes in this investigation?

• The time it took each ice cube to melt completely.

• The temperature at which each ice cube melted.

• The amount of liquid produced on each plate.

• The total volume of each ice cube.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When a powdered drink mix was added to water, the liquid turned orange. A student decided the taste was too strong, so he poured out half of the liquid and added more water. Which of the following most likely occurred when more water was added?

• The physical state changed.

• The orange color became lighter

• The liquid had a sweeter taste.

• None of the above

What type of energy do you produce when you ride a bicycle?

• sound energy

• solar energy

• light energy

• energy of motion

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Alana was walking with her family along the Mississippi River. As they walked along the levee, Alana was observing the water’s movement. Water was moving past the rocks at a fast speed. When Alana asked her mom about the energy of the water, her mom told her that because the water was moving quickly, that meant it possessed a lot of energy. Based on this passage, what can you infer about the relationship between speed and energy?

• As an object’s speed increases, its energy decreases.

• As an object’s speed decreases, its energy increases.

• Speed and energy are not connected.

• As an object’s speed increases, its energy increases.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Scholars built an electrical circuit like the one shown in the diagram. When the switch is closed, energy from the battery lights the bulb. This is evidence that...

• energy can move from place to place.

• only copper can be used for wires.

• batteries will lose energy after time.

• The switch is not needed in the circuit.

Tags

NGSS.MS-PS3-5

When two moving objects collide, the motion of both objects will change. Why does the motion of the objects change during a collision?

• Energy is transferred from one object to the other, causing a change in speed.

• Energy is transferred into heat and sound, causing you to hear the objects.

• Objects lose mass when they collide, so they weigh less.

• The motion of all objects is changing all the time.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-5

What external feature of a turtle protects it from predators?

• Its shell.

• Its feet.

• Its skin.

• Its eyes.

Tags

NGSS.3-LS4-2

NGSS.4-LS1-1

Beavers live in streams, ponds, and marches. Which beaver external features are most useful for swimming?

• webbed back feet and a flat tail

• thick brown fur and small eyes

• sharp teeth and flexible front toes

• pointed nose and small ears

Tags

NGSS.4-LS1-1

Which of the following internal structures helps an animal react to stimuli that might be dangerous?

• the heart

• the stomach

• the brain

• the lungs