Magnetism
What is the metal that magnets always attract?
Iron
Besides size and shape, name three other properties by which we compare matter:
Color
Texture
Hardness
Odor
All matter has ______ and _________.
Mass and volume
Josie pours different temperatures of water over sugar cubes and times how long it takes each to dissolve. Ice water takes 30 seconds, warm water takes 15 seconds, and boiling water takes 5 seconds. What can she conclude?
Boiling water disolves sugar the fastest!
This is the strongest part of a magnet
The poles
Which 2 properties could you use to identify the difference between an unripe banana and ripe banana?
(color, mass, volume, odor, shape, texture)
Color & odor
This is the amount of matter an object has (weight):
Mass
Ethan plants a tomato seed in two different pots. He uses the same amount of water, soil, and sunlight, but gives them different fertilizers. The plant with Fertilizer A grows 30 cm. The plant with Fertilizer B grows 22 cm. What can he conclude?
Plants grow taller with fertilizer A.
When you bring two like poles on a magnet together (north + north), what will happen?
They will repel one another
What property do a beach ball, marble, tennis ball, and soccer ball have in common?
Texture, hardness, color, shape, volume, or mass?
Shape! (They're all round!)
Define volume:
The amount of space an object takes up (size)
Clara places apple slices in different liquids and records how quickly they brown. The slices in water take 1 hour, the slices in milk take 1 hour, and the slices in lemon juice take 5 hours. What can she conclude?
Lemon juice best helps prevent apples from browning.
Which of these items WOULD be attracted to magnets?
scissors
crayons
paper clips
nails
foil
scissors
paper clips
nails
What property do a desk, rock, phone, and stapler have in common?
Shape, mass, volume, hardness, or texture?
Hardness!
If two identical looking cubes have different weights, when places on a scale, what is true about their mass and volume?
Their volume is the same and mass is different.
Cade records air temperature at different altitudes. At 5,000 feet, it's 41 degrees. At 10,000 feet, it's 23 degrees. At 15,000 feet, it's 5 degrees. What can he conclude?
Air temperature is colder at higher altitudes. (Or air temp is warmer at lower altitudes!)
How can you get two magnets to attract to one another?
Bring unlike poles together (north + south)
What property do a nail, key, pair of scissors, safety pin, and metal bottle cap all have in common?
mass, volume, texture, attraction to magnets, odor, color
Attraction to magnets!
True or False:
Breaking apart an object into pieces changes its mass
False
Mara placed the same amount of hot cocoa in 2 different cups. The cocoa in the regular mug was 72 degrees after 5 minutes. The cocoa in the insulated thermos was 85 degrees after 5 minutes. What can she conclude?
The insulated mug keeps liquids warm for longer.