Cells-7.L1U1.8, 7.L1U1.9, 7.L1U1.11, 7.L1U1.12
"This is the basic structural and functional unit of all living things."
What is a cell?
"This is the process where water changes from a liquid to a gas and rises into the atmosphere, beginning the water cycle."
What is evaporation?
"This is the region around a magnet where the magnetic force can be detected and acts on other magnetic objects."
What is a magnetic field?
"This is the ability of an object to affect another object without touching it, such as gravity pulling on a ball or a magnet attracting iron."
What is a force acting at a distance?
"This type of visual representation uses points and lines to show the relationship between two variables, such as force and acceleration."
What is a graph?
"This organelle controls the cell's activities and contains the cell's genetic information in the form of DNA."
What is the nucleus?
"These are the three major Earth systems through which matter and energy cycle: the layer of air around Earth, all of Earth's water, and the solid rock and soil."
What are the atmosphere, hydrosphere, and geosphere?
"When two magnetic poles are the same (both north or both south), this type of magnetic force pushes them away from each other."
What is a repulsive force?
"This force pulls all objects toward Earth's center and acts on objects even when they are not touching the ground. It is responsible for the weight of objects."
What is gravity?
"When analyzing data from a ramp experiment, if the ramp angle increases from 15° to 30°, and the distance traveled doubles, this describes the _____ between the two variables."
Answer: What is a pattern (or relationship)?
"This process describes how organisms maintain a stable internal environment despite changes in external conditions, such as temperature or water levels."
What is homeostasis?
"These are preserved remains of ancient organisms found in rocks that provide evidence of past life and can help prove that continents have moved over time."
What are fossils?
"This occurs when opposite magnetic poles (north and south) are brought near each other, and they pull toward one another with a magnetic force."
Answer: What is an attractive force?
"When creating a model to predict how forces act on objects at a distance, this type of diagram uses arrows to show both the direction and strength of a force acting on an object."
What is a force diagram (or free body diagram)?
"When analyzing an experiment on Newton's laws, these are the factors you deliberately change (independent variable) and the factors you measure (dependent variable)."
What are variables?
"This process occurs in plant cells, specifically in the chloroplasts, where light energy is converted into chemical energy stored in glucose."
What is photosynthesis?
Clue: "The evidence that continents were once connected includes matching fossils on different continents, similar rock types, and the fact that continental shapes fit together like puzzle pieces. What is this theory called?"
What is continental drift (or plate tectonics)?
"This factor determines how strong a magnetic force is between two magnets. The closer the magnets, the _____ the force; the farther apart, the _____ the force."
(The closer the magnets, the stronger the force; the farther apart, the weaker the force)?
"According to this principle, the strength of a force acting at a distance decreases as the distance between objects increases. The farther apart two objects are, the _____ the force between them."
What is the inverse square law (or answer: the weaker the force)?
"Look at this data table: When force increases from 5 N to 10 N, acceleration increases from 2 m/s² to 4 m/s². This pattern demonstrates which of Newton's laws?"
What is Newton's Second Law (F = ma; greater force produces greater acceleration)?
"Unlike animal cells, plant cells contain this organelle that performs photosynthesis and gives plants their green color. This organelle is found in plant cells but NOT in animal cells."
What is a chloroplast?
"Explain how the cycling of matter through the atmosphere, hydrosphere, and geosphere happens"
Water evaporates from oceans (hydrosphere) into the atmosphere, falls as precipitation, and weathers rocks (geosphere)
"Explain how you would collect and analyze data to demonstrate that magnetic forces can be both attractive and repulsive AND that they vary in strength. Describe the procedure and what measurements you would record."
What is: "Procedure: Bring two magnets together in different pole configurations (north-north, north-south, south-south) to observe attractive vs. repulsive forces. Measure the distance at which the force is first detected and the force strength at various distances using a force meter or by measuring how many objects a magnet can pick up at different distances. Data Collection: Record whether force is attractive or repulsive, the distance between magnets, and the strength measurement. Analysis: Create a graph showing distance vs. force strength; compare data between different pole configurations to show attractive forces are different from repulsive forces, and show that as distance increases, force strength decreases"?
"Describe how you would develop a model to predict how gravitational force acts on objects at different distances from Earth. What would your model show, and what data would you collect to test your predictions?"
What is: "Model: Create a visual representation showing Earth and objects at various distances from its surface. Use arrows to represent gravitational force, with larger arrows for closer objects and smaller arrows for distant objects. Data Collection: Measure the weight of the same object at different heights (sea level, mountain top, airplane altitude) using a scale. Measure gravitational acceleration at different distances. Predictions: Use the model to predict how an object's weight would change at different distances. Testing: Compare predicted values to actual measurements to validate or refine the model. Show that as distance from Earth increases, gravitational force decreases"?
"Explain how computational thinking helps scientists explain Newton's Third Law. Describe the steps you would follow to identify and analyze action-reaction force pairs using data collection and pattern recognition."
What is: "Step 1 (Define Problem): Identify action-reaction pairs in an experiment (e.g., rubber band launch). Step 2 (Collect Data): Measure force applied, distance traveled, and reaction on the launcher. Step 3 (Organize Data): Create tables showing action force, reaction force, and whether they're equal. Step 4 (Look for Patterns): Analyze whether action force always equals reaction force in magnitude. Step 5 (Create Visual): Graph or diagram showing action-reaction pairs. Step 6 (Conclude): Data shows Newton's Third Law—for every action, there is an equal and opposite reaction"?