Magnets
True or False:
Earth has a magnetic field and two opposite poles.
True. Earth IS magnetic and has two poles.
What are the three states of matter?
Solid, liquid and gas.
List at least 3 physical properties of matter.
Answer should include at least 3 of the following:
luster, mass, shape, volume, color, hardness, texture, odor, taste, attraction to magnets
The basketball coach notices that Sarah makes all of her shots and James only makes one-fourth of his. He concludes that Sarah is better at basketball than James. What is the coach basing his explanation on? A.) opinion B.) evidence C.) variables D.) inference
B!
Which two tools could be used to measure volume?
ruler, spring scale, pan balance, graduated cylinder
Ruler and graduated cylinder.
Magnets have two poles. What are they called?
North Pole and South Pole.
Define matter.
Matter is anything that takes up space (volume) and has mass.
Pat is describing the physical properties of red and green grapes. Which physical properties can she determine without using any measurement instruments? odor, taste, color, mass, texture, volume, temperate, shape
odor, taste, color, texture, shape
True or false: Two object with the same shape and size have the same volume.
True!
Of course two objects with the same size and shape would take up the same amount of space!
Ahmad is observing the growth of a plant. He made four statements, which is an inference? A.) The plant has three leaves. B.) The plant is healthy. C.) The plant is four inches tall. D.) The leaves are green.
B!
The plant is healthy. How would he know?
What is it called when two magnets are trying to get away from each other?
Repel!
Liquid water FREEZES into solid water.
When discussing size why is it important to use words like, "big" or "small?"
It is important to be SPECIFIC when talking like a scientist. Using terms like "big" or "small" is your opinion and not a fact.
Mr. Painter and Theo are at the movies. Mr. Painter's snack box is filled with chocolates. Theo's snack box is filled with popcorn. The snack boxes have the same volume. Which box has the greater mass?
Mr. Painter's box!
Water changes states when heat energy is added or taken away. What happens to water vapor when heat energy is taken away?
It condenses into a liquid. (Think of water cycle.)
When two magnets want to get closer together they are ATTRACTED to each other. Describe why this happens.
Opposite poles are attracted to each other. Note: Same poles repel each other.
Solid matter has:
A. definite shape; definite volume
B. definite shape; indefinite volume
C. indefinite shape; definite volume
D. indefinite shape; indefinite volume
A!
Solid matter has a definite shape and a definite volume.
True or False: Color and Shape are physical properties of matter.
TRUE!
Fill in the blank:
The law of __________ of mass states that the amount of matter does not change during a chemical reaction (or ever).
The law of CONSERVATION of mass states that the amount of matter does not change during a chemical reaction (or ever).
Suzie has two identical model trains. She puts one train on one pan of a balance. She takes the other train apart and places the parts on the other pan of the balance. What will she most likely observe about the balance?
They balance! Law of Conservation of Mass! The mass of all the parts is equal to the mass of the whole.
Which item is ferromagnetic? (Attracted to a magnet.) A.) iron nail B.) gold ring C.) glass vase D.) plastic button
A.) Iron nail!
Compare how the particles are arranged in solid compared to how they are arranged in a gas.
The particles are tightly packed in a solid. In a gas, the particles a moving rapidly. Chaotic!
Define hardness.
Hardness is the measure of how easily matter can be bent or broken. Or scratched!
Which state of matter has no definite volume and no definite shape?
Gas!
Ben's mom puts water in a pot and places the pot on a hot stove. What will happen to the water?
Uhhh... it will evaporate! It will turn into water vapor!