40 !
ted is a high school student. he is very good at math, but he is not a very good english student. he likes all of his teachers; he thinks they are fair and want him to learn. on tuesday, ted was sitting in his english classroom, listening to his teacher’s lecture. the teacher asked the class a question. he called on ted. ted had not been paying attention. his palms began to sweat, and his heart rate increased. he felt embarrassed that he did not know the answer. on wednesday, ted was asked to answer another question in his math classroom. even though this time he was listening and knew the answer, his palms began to sweat and his heart rate increased.
why did ted’s palms sweat and heart rate increase on wednesday?
a. ted associated his embarrassment with being in high school.
b. ted associated his math teacher with feelings of embarrassment.
c. ted was not completely sure that his answer was correct.
d. ted associated being asked a question with embarrassment.

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

Which articulations allow for greatest range of motion?

While studying chemical reactions and conservation of matter, sarah's class conducted a variety of experiments. sarah and her lab partner found the mass of a wax candle and placed the candle in a flask. the students lit the candle and let it burn to completion. all that was left was wax and charred candle wick. per their teacher's instructions, the students found the mass of the products. their data can be seen in the data table. formulate a hypothesis the students could test to explain why the experiment did not support the law of conservation of matter. a) the students could repeat the experiment using different candles; there might have been a flaw in the candle. b) the experiment should be repeatable. the students should run several trials and then take an average of the after mass in each trial. c) the students should have someone in the class check their measurement skills as they repeat the experiment. they may have made an error using the balance. d) the students should burn the candle in a container that has some type of lid so that any gas that is a product of the reaction can be contained and massed. submit