Vocabulary
What is wavelength?
Edgar watches a movie on TV. Which types of energy allow Edgar to watch the movie?
What is electric, light and sound?
The vocal cords of a frog vibrate very slowly. Based on how the vocal cords of a frog vibrate, which of these is true about the sound the frog makes?
a. it is high pitched
b. it is high speed
c. it is very loud
d. it is low pitched
What is "D. it is low pitched?"
When Richie plucks the strings on a guitar, the guitar makes a sound. What is the best explanation of why the guitar strings make a sound when Richie plucks them?
What is "they cause the air to vibrate?"
A measure of how high or low a sound is.
What is pitch?
Helen conducted an experiment. When she hit the drum with a drumstick, the paper clips on top of the drums flew into the air. What did Helena demonstrate?
What is "sound energy can cause movement."
Jules stretches a rubber band around two pegs on a wooden block. Jules plucks the rubber band and observes a sound. What should Jules do if he wants to hear a higher-pitched sound?
What is "move the pegs farther apart?"
Sally was observing the natural world. She had several questions. Which question could be answered by evidence?
a. Is space travel fun?
b. Which is the best season?
c. Which type of wildflower is the prettiest?
d. How do bees make honey?
The taking in of sound energy in an object.
What is absorption?
Where does sound energy come from?
What is "sound energy comes from materials vibrating?"
The students in Miss Khalid's class are using rubber bands and shoe boxes to make sound instruments. They have rubber bands of different thickness. If Rubber Band A is thicker than Rubber Band B, what can the students conclude about the pitch of Rubber Band B?
What is "it is higher?"
The scientific process must include evidence that can be measured. Which of these questions is LEAST likely to be tested using this process?
a. How much water does a plant need to grow?
b. Do robins prefer a certain type of seed?
c. What is the fastest route to school?
d. Are dogs better than cats?
What is "D. Are dogs better than cats?"
What is intensity?
Victor plugs in a CD player, puts in a CD, and turns it on. Which types of energy is he using?
What is "electric and sound energy?"
Which of the following is NOT one way that scientists investigate scientific questions?
a. make a prediction
b. plan and conduct and experiment
c. gather and analyze results
d. change the results to match the prediction
What is "D. change the results to match the prediction?"
Sound waves with more energy make _________ sounds.
What is louder sounds?
A quick back and forth motion.
What is vibration?
Laura plays the guitar. She plucks one string and hears a very high-pitched sound. To lower the pitch of the sound, what must Laura do?
What is "loosen the string?"
What is the best way for scientists to present evidence from an experiment?
What is "create graphs and data tables?"
What are wavelength, frequency, and amplitude?