Fossils
Fossils of tropical plants are found in an area that is now cold and snowy.
Question: What does this suggest about Earth’s past climate there?
Answer: The climate was once much warmer.
10 points
A student rubs a balloon on their hair and then holds it near small pieces of paper. The paper pieces move toward the balloon without being touched.
Question: What caused the paper to move?
Answer: Static electricity caused the charged balloon to attract the paper.
10 points
Layers of sand, mud, and shells are pressed together over time to form rock.
Question: What type of rock forms this way?
Answer: Sedimentary rock.
10 points
Over many years, wind slowly wears away the side of a mountain, while rain continually washing the pieces away.
Question: What 2 processes are occurring?
Answer: weathering & erosion
10 points
A cactus has thick stems that store water and sharp spines instead of leaves.
Question: How do these structures help the cactus survive?
Answer: The thick stems store water, and the spines reduce water loss and protect the cactus from predators.
15 points
A fossil imprint shows the shape of a fern leaf from millions of years ago.
Question: What type of information can this fossil provide?
Answer: It can provide evidence about ancient plants and past environments.
15 points
Two magnets are placed close together. When the north poles face each other, the magnets push apart.
Question: Why do the magnets move away from each other?
Answer: Like magnetic poles repel each other.
10 points
A sedimentary rock melts deep inside Earth, cools into igneous rock, and later changes under heat and pressure.
Question: What process is being described?
Answer: The rock cycle.
15 points
Heavy rain causes rocks and soil to slide rapidly down a steep hill.
Question: What fast Earth process is this?
Answer: landslide
5 points
A rabbit quickly runs into its burrow after hearing a loud sound nearby.
Question: Which sense helped the rabbit respond to danger?
Answer: Hearing.
5 points
A fossil shell is discovered on top of a mountain far from the ocean.
Question: What does this suggest about the area long ago?
Answer: The area was once covered by water or part of an ocean environment.
10 points
A toy train with metal wheels rolls across a track. A magnet placed beside the track pulls the train closer without touching it.
Question: What force is acting on the train?
Answer: Magnetic force.
10 points
Two minerals are both white, but one scratches quartz and the other does not.
Question: Why is color alone not enough to identify minerals?
Answer: Many minerals can have the same color, so other properties like hardness are needed for identification.
10 points
What slow process specifically causes earthquakes to occur?
Answer: tectonic plates
10 points
Some birds in a population have slightly longer beaks that help them reach food deep inside flowers during drought conditions.
Question: Why might these birds survive better than others?
Answer: Their longer beaks give them an advantage in getting food, helping them survive and reproduce.
15 points
Different layers of rock contain different fossils. The deeper layers contain simpler organisms, while upper layers contain more complex organisms.
Question: What does this pattern suggest?
Answer: Life on Earth has changed over time.
10 points
A student notices that socks stick together after being removed from a dryer.
Question: What caused the socks to stick together?
Answer: Electrically charged particles created static electricity that caused attraction.
15 points
A student finds a rock with visible crystals that formed from slowly cooling magma underground.
Question: Why did large crystals have time to form?
Answer: The magma cooled slowly underground.
15 points
Explain how a slow change to Earth's surface can cause a fast change to happen.
Answer: Slow processes gradually break down and carry away parts of earth's surface, leaving that area weaker and more prone to fast changes, like landslides or earthquakes.
20 points
Polar bears have thick fur and a layer of fat beneath their skin.
Question: How do these structures help polar bears survive in the Arctic?
Answer: The fur and fat provide insulation to keep the bears warm in cold temperatures.
15 points
Scientists compare a fossilized dinosaur leg bone to the leg bones of modern birds and notice similarities.
Question: What can scientists infer from these similarities?
Answer: Modern birds and dinosaurs may share a common ancestor.
15 points
A charged plastic ruler is brought close to a stream of running water, causing the water to bend slightly toward the ruler.
Question: Why did the water move even though the ruler never touched it?
Answer: The electric charge on the ruler attracted the water molecules.
15 points
A student rubs a mineral across an unglazed tile and sees a reddish-brown powder left behind.
Question: What mineral property is being observed?
Answer: Streak.
5 points
Tree roots grow into small cracks in rocks, slowly breaking the rocks apart over time.
Question: What process is this an example of?
Answer: weathering
5 points
An owl hears movement in the grass at night and quickly swoops down to catch a mouse.
Question: Explain how the owl’s senses and response work together for survival.
Answer: The owl uses its hearing to detect prey, processes the information, and responds by hunting the mouse.
20 points