Science Earth and Space Flashcards
6 cards from real ICAS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Science Earth and Space flashcards as text
Earthquakes are most common along the boundaries of tectonic plates. Which of the following best explains why?
Answer: Plates move past, into or away from each other at boundaries, releasing built-up energy
Stress builds where plates interact and is released suddenly as an earthquake.
A student measures the length of a vertical stick's shadow at 9 am, 12 noon and 3 pm on a sunny day. Which result should they expect?
Answer: The shadow is shortest at noon
At midday the Sun is highest in the sky, so shadows are at their shortest.
Which of these is a renewable resource?
Answer: Wind
Wind is constantly replenished by natural processes, unlike fossil fuels.
The diagram in a textbook shows the Sun, Earth and Moon in a straight line with the Moon between the Sun and Earth. What event does this arrangement cause?
Answer: A solar eclipse
When the Moon passes directly between the Sun and Earth, it blocks sunlight, causing a solar eclipse.
Which of these is the main cause of ocean tides on Earth?
Answer: The gravitational pull of the Moon
The Moon's gravity pulls on Earth's oceans, creating bulges of water that we experience as tides.
Fossils of sea creatures are found high in a mountain range. What is the most likely explanation?
Answer: The rock was formed under the sea and later pushed up by plate movement
Sedimentary rock formed on the sea floor can be uplifted into mountains over millions of years.