Physical Science
What process is responsible for heat from a fire rising up a chimney?
What is convection?
In birds, air entering the nostrils moves through the windpipe and into the lungs and a system of air sacs. Which system do nostrils, windpipe, lungs and air sacs belong to?
What is respiratory system?
The lithosphere contains all or some of what two layers of the Earth?
What is the lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth's structure.
The tiny structures that carry out specific functions in cells are called?
What is organelles?
Darwin proposed a well-tested theory of evolution by the process of natural selection. What factor is responsible for the selection of the most favorable traits in organisms?
What is environment?
Which of Newton's Laws can explain what force is used when pushing a box?
What is when you push a heavy box, it pushes back at you with an equal and opposite force (3rd Law) so that the harder the force of your action, the greater the force of reaction until you apply a force great enough to cause the box to begin sliding.
List the four structures (organelles) that plant and animal cells both have?
What are cell membrane, nucleus, mitochondria, and vacuoles?
What is the main way that rivers creates deltas and alluvial fans?
What is deposition?
One of the first demonstration diesel engines ran on peanut oil. What type of fuel is peanut oil?
What is bio-fuel?
What causes the four seasons?
What is the Earth's tilt?
A student is given a sample of an unknown liquid to test in the laboratory. The student thinks that the liquid is water. Which property would you test to provide evidence for this students prediction?
What is the boiling point of the liquid?
How do meiosis (sexual reproduction) and mitosis (asexual reproduction) differ?
What is sexual reproduction just means combining genetic material from two parents to produce genetically unique offspring. Asexual reproduction produces offspring genetically identical to the one parent.
The theory of plate tectonics states that the Earth's lithosphere is divided into plates, which are in constant, slow motion. Give an example of a formation due to plate tectonics.
What is the Himalayan mountains?
The Amanita phalloides is a deadly type of mushroom. Mushrooms are multicellular, heterotrophic organisms with cell walls. Why are mushrooms classified as fungi and not as plants?
What is mushrooms aren't plants because they don't make their own food. The underground part of the fungus uses enzymes to "digest" other substances that it can use as food.
Baking a cake is an example of a ___________ change explain why?
What is baking a cake is a chemical change because the baking powder or baking soda will undergo a chemical reaction. The heat helps baking powder or soda produce tiny bubbles of gas which makes the cake light and fluffy. That’s why chemical reactions are involved in baking a cake. The trapped carbon dioxide makes the dough rise, and other ingredients evaporate during the baking process. It is considered an irreversible chemical change because the sugar and the yeast have created new substances and the reaction cannot be reversed.
What is the smallest unit of a chemical compound that still has the properties of that compound?
What is a molecule?
Provide an example of the nervous system and circulatory system working together?
What is your skin's blood vessels widen to release heat when you are hot?
When do spring and neap tides occur?
What is spring tides occur when the sun and the moon are in line (180°) with the earth. Neap tides occur when the sun and the moon occur at right angles (90°) to the earth.
The Appalachian Mountains, which extend from Canada to Alabama, were much taller in the past than they are today. What two processes are most responsible for the decrease in the height of the Appalachian Mountains?
What is weathering and erosion?
Summer sea breezes occur when cool air from the sea moves over land, warms, and rises. The warm air then flows over the sea, cools and falls. In this way, heat is transferred from the air over land to the air over the sea. What property of water causes these wind movements?
What is water heats and cools at a slower rate than land?
A student is investigating potential and kinetic energy by stretching a spring across a table. When the student lets go, the spring recoils. At which time is potential energy in the spring being converted into kinetic energy in this system?
A. when the spring is stretching
B. when the spring is fully stretched
C. when the spring is recoiling
D. when the spring is fully recoiled
What is C. when the spring is recoiling?
How is a skin cell from a mouse similar to an amoeba?
What is both need energy?
Explain why it is warmer at the equator than at the North Pole?
What is the sun's rays hit the earth's surface at a higher angle at the equator.
Which planet is always closer to the Sun than it is to Earth?
What is mercury?
Describe the force that formed the planets of our solar system and how it did so?
What is approximately 4.6 billion years ago, the solar system was a cloud of dust and gas known as a solar nebula. Gravity collapsed the material in on itself as it began to spin, forming the sun in the center of the nebula.
With the rise of the sun, the remaining material began to clump together. Small particles drew together, bound by the force of gravity, into larger particles, according to the core accretion model. The solar wind swept away lighter elements, such as hydrogen and helium, from the closer regions, leaving only heavy, rocky materials to create terrestrial worlds. But farther away, the solar winds had less impact on lighter elements, allowing them to coalesce into gas giants. In this way, asteroids, comets, planets and moons were created.