Cosmology
Which of these best describes the composition of a nebula such as the Crab Nebula?
clouds of dust and gas
The highest and lowest tides are known as the spring tides. When do these tides occur? (new moon and full moon's phase, between half moon and full moon)
New moon and Full moon
The moon has a stronger influence on Earth's tide than the Sun because the Moon
closer to Earth
A geologist studying volcanic activity is collecting rock samples that formed from hot, molten magma. What type of rock is the geologist collecting?
igneous
What natural process is the main cause of ocean currents?
Convection
Which of these planets travels around the Sun in less time than it takes it take Earth to complete one revolution?
Mars, Saturn, Mercury, Venus
Mercury
The weather map helps to predict the location where a storm will occur by giving which type of information?(humidity, pressure)
pressure
The environmental effects of the meteorite impact 66.4 million years ago may have led to the extinction of many species on Earth. What evidence supports this theory?
Iridium found in meteorites is also present in rock layers 66.4 mya
A student on a geology field trip will identify minerals from their streak. Which of these should the students bring on the field trip?
rough ceramic tile
In order to protect aquifers near landfills, material is placed under the soil to prevent pollution. What property must the protective material possess?
Low permeability
Which of these measurements allows the scientist to compare the brightness of stars?( absolute magnitude, red shift)
Absolute magnitude
Spacecraft traveling to Jupiter from Earth would most likely have to navigate through or around which natural obstacle? (comet's tail, asteroid belt)
Asteroids belt.
A student hypothesizes that water from infrequently used faucets contains more chemical impurities than the water from frequently used faucets At the same time of the day, the student uses a water test kit to measure the water impurities from different faucets. Which is the manipulated variable in this investigation?
The location of water collection.
What provides the best estimate of how long it took a thick layer of sedimentary rock to form?
Calculating the age of the top and bottom of the layer
The cleavage properties of mica result from--
weak bonds between layers
About 2.0 million years ago, complex organisms began to inhabit Earth. These complex organisms developed primarily because of-- (atmospheric gases, volcanic eruption)
Changes in atmospheric gases
Cloudy nights can be warmer than clear nights because clouds trap heat---(generated from tropical winds, absorbed by Earth during daylight hours)
absorbed by Earth during daylight hours
Which coordinates identify the location north of a city that has a latitude of 38.0 degrees North and a longitude of 25.0 degrees West?
47 degree North and 25 degree West
Rocks found on land are up to 3.8 billion years old, but those in the ocean are no more than 180 million years old. Using the information shown, during which era could parts of the ocean floor have formed? (Triassic. Mesozoic)
Mesozoic
What natural resource found in Virginia is a common source of energy?
Coal
A scientist studying energy transfer that occurs in the oceans, atmosphere, and Earth's interior. Which of these is the scientist most likely studying?(gravity,convection)
Gravity
Which of these describes the area immediately below a water table?(Zone of aeration, Zone of saturation)
Zone of saturation
Identical rock types, identical fossils, and very similar mountain ranges are found on different continents that are separated by a wide ocean. Which of these best explains these observations?
These continents were joined together at one time in the past.
Students plan to use several rain gauges to compare the average monthly rainfall between Virginia’s Coastal Plain and Piedmont regions. Which of these variables should be manipulated( Size of the gauge, Location of the gauge)
Location of the gauge
When granite is subjected to high enough amounts of heat and pressure to change it but not melt it, granite changes into —
metamorphic rock