How can you compare matter?
How does matter change?
How is sound made?
How does sound travel?
How do sounds change?
100
What does properties mean?
It is the color, shape, size, odor, and texture
100
What is mixture?
It is something made of two or more things.
100
What is sound?
It is energy that you hear.
100
What is an echo?
It is a sound that repeats when sound waves bounce off a surface.
100
What is pitch?
It is how high or low a sound is.
200
All things are made of matter. What are the three states of matter?
Solid, liquid, gas
200
What is opposite of mixture?
Separate- taking things apart
200
How is sound made?
It is made when matter vibrates, or moves back and forth very quickly. When you play a musical instrument, the air around it vibrates.
200
True or false? Sounds go farther in water than they do in air.
True.
200
What is volume?
It is how loud or soft a sound is.
300
Describe the three states of matter.
Solid- State of matter that has its own size and shape Liquid- State of matter that does not have its own shape; it flows and take the shape of a container Gas- State of matter that spreads out to fill a space; has no shape of its own.
300
What does dissolve mean?
When you stir drink mix powder into water, it dissolves, or mixes completely with water. Example: Cocoa with hot milk
300
What part of our body do we use to hear sound? What is another word for vibrating air?
You use your ears to hear sound. Vibrating air goes into your ear. This vibrating air is called a sound wave.
300
Through which of the following would sound travel the fastest? a) a swimming pool b) a balloon c) a bouncy ball d) a wall
d) a wall
300
True or false. Something that vibrates more quickly makes a sound with a low pitch.
False. It would make a high pitch. Something that vibrates more slowly makes a sound with a low pitch.
400
Is juice a solid, liquid, or a gas? Give another example of a solid, liquid, and a gas.
Answers my vary.
400
True or false? You can change the properties of solid matter in many ways.
True. You can change the shape of matter by cutting it. You can change the size or shape of matter by breaking it into smaller pieces. You can tear paper into different sizes and shapes.
400
Some people need help to hear. What special tool do they use to help them hear?
They use hearing aids.
400
Some animals use echoes to find things in the dark. Name couple of animals we have learned in class who use echoes.
Bats and dolphins
400
How can you change the volume of a guitar?
You can pluck the string harder or more gently. If you pluck the string harder, the sound would be loud.
500
We talked about using three types of tools to measure: measuring cup, ruler, and balance. What is difference between each one?
Ruler- Measure length, width, and height of a solid object Measuring cup- Measure the amount of space that a liquid takes up: Volume Balance- Measure the mass: how heavy or light an object is
500
Matter can change from one state to another. Taking away heat causes some liquids to change to (1.) __________. Adding heat causes some solids to change to (2.)____________. If water is heated, it can____________ (3.)
1.) solids 2.) liquids 3.) evaporate; change to a gas; become water vapor
500
What happens as sound waves move through the ear?
Sound waves move through your ear. They make parts inside your ear vibrate. This causes a nerve in your ear to send a message to your brain. Your brain understands this message as a sound.
500
When people go to a concert, they must be able to hear the music. How do the sound waves move toward the listeners?
Concerts are held in special places. The shape of a stage can help move sound waves toward the audience.
500
How do you change the pitch on a guitar?
Short strings vibrate quickly and make a higher sound while long strings vibrate slowly and make a lower sound.
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