Which is an example of a chemical change? distilling a mixture of water and alcohol

rust forming on an iron fence

the change of iodine from a solid to a purple gas

salt dissolving in a glass of water

Write a question about how changing temperature affects the gas inside the sports ball

Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents