What are the characteristics of pure substances

Elyse is explaining to a friend that she will be conducting a scientific investigation. Her question is "How many leatherback sea turtles will migrate to their home beach on the eastern coast of Australia this season?

You have been feeling stressed lately, and you know that you tend to overeat when you are stressed. What can you do to combat this problem? Exercise to reduce stress Sleep fewer hours every day Eat sweets to feel happier Embrace your moodiness

April swims 50m north and then turns and swims back to the south. What is her velocity if it takes 60 seconds

Roads often have to be repaved because they crack over time. Sometimes this cracking is due to the fact that the roads (as well as other objects) have a tendency to expand when heated and contract when cooled.

You want to create a new warming appliance that is safe. Which type of electromagnetic wave would be most useful to investigate? - X-rays -infrared waves -gamma rays -ultraviolet waves

Which hormones are released in girls during puberty? A. testosterone and estrogen B. testosterone and progesterone C. ingesterone and estrogen D. estrogen and progesterone

Which property makes radio waves most useful for communication? They have low frequencies. They have long wavelengths. They transfer low amounts of energy.

Describe how water may be treated before it is used by people? P. S - This is a science question.

Using the formula for kinetic energy of a moving particle k=12mv2, find the kinetic energy ka of particle a and the kinetic energy kb of particle b. remember that both particles rotate about the y axis.

boris the bear is lumbering along at a constant rate of 4.0 m/s. if he walks for 600.0 seconds, how far will he travel?