Joe had a substance that was malleable and readily conducted heat and electricity. It was shiny in appearance and had a high density. This substance was a

Mr. Pulaski wants to carry out an experiment to learn how acid rain affects living organisms. Which of the following would be the BEST hypothesis to test for this experiment?

What measurement, instrument, and unit would you use to measure the amount of matter in an object?

If you were doing an experiment and you recorded data that was descriptive like colors of pink, red, and purple....what kind of data would this be called?

A group of students are determining the density of a solid cube of plastic. The MOST appropriate set of tools for this activity would be a —

Water can be represented by the chemical formula H2O. What does the letter O represent in this formula?

Some students are experimenting to test whether plants need fertilizer for growth. How should they treat the control plant in this experiment?

Mr. Guinn had two clear liquids, Liquid A and Liquid B. He filled one beaker with Liquid A, and then added Liquid B, drop by drop, until solid crystals suddenly formed on the bottom of the beaker. What is the best explanation for what happened?

When plants undergo photosynthesis, what type of energy is converted into chemical energy?

When a cow eats grass, it chews the grass swallows it. The food ends up in the stomach broken down and absorbed. The energy and matter from the grass is used by the cow’s body to produce milk. What transformations occur in the cow to produce milk?

The use of which of the following resources would be most affected by changes in weather?

Which of the following energy resources would be the most environmentally friendly way to add to the electrical power system?

The chemical symbol Ca represents.....

Compounds are pure substances. What other chemicals are considered pure substances?

The volume of an egg and water in a graduated beaker is 200 mL. After the egg is removed, the volume of the water is found to be 125 mL. What is the volume of the egg in cm3?

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