A student wants to investigate the energies of two identical marbles before and after they collide. The student plans to roll the marbles toward each other across a flat surface. Changes to which two characteristics of the marbles would best show that the energy of each marble changed during and after the collision?
A solar shower is a device that people use to take showers outside. The device includes a bag and a hose with a spout. Two solar showers are filled with water and placed outside in direct sunlight. A student records the time needed for the temperature of the water in the two solar showers to increase.
Students have been asked to use Morse code to send a short message to one another. Each pair of students will stand facing away from each other at a distance of 20 feet. Which method would work best for each pair of students to send a message using Morse code?
Light reflects from the surface of the tree.
Light enters the student's eyes.
Light from the Sun reaches the tree.
The tree absorbs light.
The tree produces its own light.
The list describes actions that occur in the body when a person eats food.
Body Actions That Occur When a Person Eats Food
• Chewing begins to break down food in the mouth.
• Food moves into the stomach and then into the small intestine.
• Important nutrients leave the small intestine and enter the bloodstream
• The remaining materials move into the large intestine.
Which pair of body systems interact most in the processes described in the list?
The diagram shows fossils that have been found in different rock layers under a school playground.
The diagram below shows parts of a volcanic mountain.
Which claim is best supported by the information in the diagram?
The drawings below show the same rock at two different times.
Which set of information best identifies and describes the process shown in the drawings?
Match the vocabulary word to its definition.
collision
energy
kinetic energy
energy transfer
The energy an object has due to its motion
When energy moves from one place to another
When two objects come together with force
The ability to change or move an object through force
Which of the following is an example of a collision? Select ALL that apply.
What happens to the motion of objects in a collision?
Rocks formed under water when sand and sediments become cemented together in layers are:
A rock that has been changed by heat, pressure, or both is a:
"Fire made" rock that forms when lava cools and hardens is:
Any trace, mark, or remains of an organism at least 10,000 years old is a:
Igneous rocks are formed when:
Sedimentary rocks often show layers because
A seashell fossil found on top of a mountain suggests that:
Which change to Earth's surface happens quickly?
Which is an example of weathering?
What is the sun’s role in the water cycle?
Which is an example of an instinct?
Select the two tools the student should use to measure the speed of the energy change in this experimental design.
Which external structure helps humans see?