Standard 1 objective 4 part 2

Match it! Select the correct answer from the pull down...Good luck!

A student uses clay to model the conservation of mass. 1st she finds the mass of the clay on a balance. Then she makes shapes with the clay without adding or removing clay. She masses it again. How will her results model this law?

Refer to chart 1. Which test should be considered the control?

Refer to chart 2. How has the development of computers depended on chemists?

Refer to chart 2. Which of the following would be the best title for this reading?

What should the students conclude about changing the amounts of reactants?

Students measure 2.0g of baking soda and 5.0g of vinegar. They mix them together and watch bubbles form. The mass of the resulting liquid is 6.7g. How should students redesign this experiment for better accuracy?

Students measure 2.0g of baking soda and 5.0g of vinegar. They mix them together and watch bubbles form. The mass of the resulting liquid is 6.7g. Based on the law of conservation of mass, what should the mass of the gas that escaped be?

Refer to chart 1. Which variable was changed in test # 2?