Throwback Thursday: Week 2 MP3

Benjamin, David, and Ethan are working on a school project about plant cells. They are discussing the function of the cell wall in a plant cell. According to them, what does the cell wall do?

• It stores the plant cell's genetic material

• It provides structural support and protection to the plant cell

• It is responsible for the plant cell's energy production

• It regulates the growth of the plant cell

Tags

NGSS.MS-LS1-2

Oliver and Luna are working on a science project about plants. They are trying to identify the organelle in plant cells responsible for photosynthesis. Can you help them?

• mitochondria

• chloroplast

• nucleus

• ribosome

Tags

NGSS.MS-LS1-6

Michael was studying the structure of an animal cell for his biology project. He was particularly interested in the function of the lysosome. Can you help him understand what the lysosome does in an animal cell?

• It acts as a storage unit for water and nutrients in the cell.

• It plays a crucial role in regulating cell division.

• It functions as the cell's digestive system, breaking down waste materials and cellular debris.

• It assists the cell in carrying out photosynthesis.

Tags

NGSS.MS-LS1-2

Abigail, Aiden, and Grace are studying biology. They learned that there is an organelle in animal cells responsible for energy production. Can you help them identify this organelle?

• nucleus

• endoplasmic reticulum

• mitochondria

• ribosomes

Tags

NGSS.MS-LS1-2

Mason and Olivia are playing tug of war. Mia is observing them. According to Mia, what does it mean when the forces are unbalanced?

• It means Mason and Olivia are pulling with forces that are not equal in size and same in direction

• It means Mason and Olivia are pulling with forces that are equal in size and opposite in direction

• It means Mason and Olivia are pulling with forces that are not equal in size and opposite in direction

• It means Mason and Olivia are pulling with forces that are balanced and in the same direction

David and Zoe are playing soccer. David kicks the ball and it keeps moving in the same direction with the same speed. Nora, who is watching them, is confused. How would you explain this scenario to Nora using Newton's first law of motion?

• The ball will eventually come to a stop on its own.

• The ball will stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

• The ball will change direction without any force.

• The ball will start moving on its own even if it was at rest.

David, Scarlett, and Isla are studying the movements of the Earth. They are confused about the difference between rotation and revolution. Can you help them understand?

• Rotation is like David walking in a straight line from his house to school, while revolution is like Isla riding her bicycle in a circular path around the park.

• Rotation is like Scarlett folding a paper into different shapes, while revolution is like David painting his house in different colors.

• Rotation is like Scarlett orbiting around David during a game of tag, while revolution is like Isla spinning on her own axis during a ballet performance.

• Rotation is like Isla spinning on her own axis during a ballet performance, while revolution is like Scarlett orbiting around David during a game of tag.

Tags

NGSS.MS-ESS2-6

Zoe, Avery, and Grace are discussing Newton's third law of motion. They are trying to understand how it applies to everyday situations. Can you help them?

• When Zoe goes for a walk, the action of her foot pushing back on the ground causes the reaction of the ground pushing her forward. This is an example of Newton's third law.

• While Avery is cooking, she stirs a pot. The action of her stirring causes the reaction of the pot staying still. This is not a correct example of Newton's third law.

• When Grace drives her car, the action of her pressing the gas pedal causes the reaction of the car moving forward. This is not a correct example of Newton's third law.

• If Avery sits still, there is no action or reaction. This is not a correct example of Newton's third law.

Oliver, Ava, and Alex are working on a physics project about forces. They are trying to understand the concept of friction. Can you help them?

• Friction is a force that opposes motion between two surfaces that are in contact.

• Friction is a force that promotes motion between two surfaces that are in contact.

• Friction is a force that has no effect on motion.

• Friction is a force that only exists in liquids and gases.

During a school project, Benjamin, Anthony, and Mia built a model of the Earth and its orbit around the Sun. They are asked to demonstrate the direction of Earth's rotation and orbit. What direction should they move their model?

• Clock Counter

• Clockwise

• Counter-Clockwise

• Counter-Wise