Elementary Brain Bowl

A student looks into a mirror and sees an image of an object. Which diagram shows an X where the object is most likely located?

• F

• G

• H

• J

Tags

NGSS.MS-PS4-2

When light travels through the air into a prism, it bends and separates into many colors. In which other situation does light bend?

• When light moves through air into water

• When light hits a wall

• When light passes through outer space

• When light hits a mirror

Tags

NGSS.MS-PS4-2

Scientists use telescopes to make distant objects appear closer. Some parts of a telescope are shown below. Which of the following best describes how the objective lens of this telescope helps scientist observe the moon?

• The objects lens produces light.

• The objective lens blocks light.

• The objective lens reflects light.

• The objective lens refracts light.

A group of students built the circuit shown below. The lightbulb does not glow. What statement explains this observation?

• The battery is not charged.

• The lightbulb is not part of a complete circuit.

• The circuit does not have a switch.

• The bell uses most of the energy from the battery.

Many types of fans are used in homes. One type of electric fan is show below. In addition to mechanical energy, which of these is produced as electric current passes through the circuit of this fan?

• Heat

• Mass

• Light

• Water vapor

Tags

NGSS.MS-PS3-5

Students drop the same heavy ball onto identical blocks of soft clay from different heights. For each height they measure the depth of the dent the ball makes in the day. Why is the depth of the dent different in each trial?

• The size of the ball changes.

• The material of the ball changes.

• The mass of the ball when it hits the clay changes.

• The force of the ball when it hits the clay changes.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-5

The picture below shows a pulley system that can be used to lift a box. Which of these should a person do to lift the box?

• Tie the end of the rope to the box.

• Tie the end of the rope to the ceiling hook.

• Pull the end of the rope downward.

• Allow the end of the rope to move upward.

The diagram shows the metal posts that are usually found on a battery. The diagram shows the metal posts that are usually found on a battery.

• The battery needs only one metal post to connect to the bell, but the other metal post is present in case the first post fails to work.

• The battery needs to form a complete circuit that starts with one metal post and ends with the other metal post.

• Once metal post makes a complete circuit with the switch, and the other metal post makes a circuit with the bell.

• One metal post makes the bell start to ring, and the other metal post makes the bell ring louder.

The diagram below shows a fish being viewed from above the water. The fish appears to be closer to the surface than it really is. What causes this difference?

• Light is reflected.

• Light is refracted.

• Light is focused.

• Light is blocked.

What is the primary function of the human brain's cerebrum?

• Control of voluntary movements

• Regulation of heart rate

• Balance and coordination

• Production of hormones