the amount of matter in an object
mass
When a car is moving forward, does it have a balanced or unbalanced force?
unbalanced
Which statement best predicts how the energy of a ball will change immediately after pushing it off a table?
A. Both potential energy and kinetic energy will increase.
B. Both potential energy and kinetic energy will decrease.
C. Potential energy will decrease, and kinetic energy will increase.
D. Potential energy will increase, and kinetic energy will decrease.
C.
When a rollercoaster is moving down a ramp, what type of energy does it have?
Kinetic energy
the amount of matter in an object
mass
A group of students was challenged to construct a boat that could transport 10 milliliters (13.38 grams) of corn syrup across a small, plastic swimming pool. Which question will best help the students design their boat?
A. What is the mass of the boat and the corn syrup?
B. What force is needed to push the boat across the length of the pool?
C. What boat shape is needed to lower the density of the boat and the corn syrup?
D. What is the distance from one point of the pool to the point on the exact opposite side?
C.
Kelp gives it's energy to these 2 organisms when it's eaten.
Kelp Bass and Sea Urchin
What type of change is baking cookies?
chemical
Students list ways people at their school can reduce landfill waste.
Ways to Reduce Landfill Waste at Our School
• serve lunches on reusable plates • turn in some homework using email • copy worksheets on both sides of paper • replace paper towels with hand dryers
Which other idea would most likely be included on this list?
A. remove trash cans from hallways
B. turn off lights when leaving a room
C. replace old textbooks with newer ones
D. add recycle bins for paper in classrooms
D.
A change that alters the identity of a substance, resulting in a new substance or substances with different properties (HINT: you only know 2 types of changes)
Chemical change
When earth rotates once every 24 hours, this creates what for us here on earth?
Day and Night
3 abiotic and 3 biotic factors
Answers will vary
Most of Earth's water is located here.
the ocean.
What factor is responsible for the changes in Orion’s position when viewed during the winter months?
A. the rotation of the Sun
B. the rotation of Earth on its axis
C. the revolution of the Sun around the Earth
D. the revolution of the moon around the Sun
B.
a push or pull on an object
Force
Most metals are this. (Insulators, conductors, or electrators)
conductors
Which process would be the best way to increase the concentration in a solution of sugar and water?
A. Decrease the amount of sugar, and increase the amount of water.
B. Increase the amount of sugar, and keep the amount of water constant.
C. Decrease the amount of sugar, and decrease the amount of water.
D. Increase the amount of water, and keep the amount of sugar constant.
B.
What keeps planets in orbit around the Sun?
gravity
Potential
a force that happens when two things rub against each other and slows them down
friction
When earth rotates once every 24 hours, this creates what for us here on earth?
Day and Night
A student needs to separate a mixture composed of iron filings and sand. How can the student most easily separate all the iron filings from the mixture?
A. Use a magnet to attract the iron filings.
B. Use filter paper to isolate the iron filings.
C. Add water to the mixture and pour off the floating iron filings.
D. Add water to the mixture and allow it to evaporate and leave behind the iron filings.
A.
Two students are discussing different ways to move a wagon filled with bricks.
Which claim explains the forces that cause the wagon to move?
Claim A: balanced force is needed to move the wagon. Claim B: An unbalanced force is needed to move the wagon.
Claim B
Which statement best explains the change that occurs when wood is burned?
A. This is a physical change because the products can be changed back into wood.
B. This is a physical change because the products are different from the starting materials.
C. This is a chemical change because the products can be changed back into wood.
D. This is a chemical change because the products are different from the starting materials.
D
changing materials into different shapes or smaller pieces, heating and cooling, and melting and freezing
physical change