What mass is shown on each of the following balance?

Measure the following volumes.

If you do not understand a direction or part of a laboratory procedure, you should

After completing an experiment, all chemical wastes should be

Horseplay, practical jokes, or pranks in the lab are

When you finish working with chemicals, biological specimens, and other lab substances, always

Before you leave the science room, you should

When you work in the lab, long hair must be

Lisa boiled 5 cups of water in the pot. This is an example of a (n)

The grass turned brown and stiff at the end of July. This is an example of a (n)

For an experiment, a scientist put lime at the base of tomato plant A and baking soda at the base of tomato plant B. She then sealed the plants in plastic bags. Tomato plant A eventually died, and tomato plant B stayed healthy. What was the dependent variable in this experiment?

A student planted the same kind of seeds in pots A and B. She planted five seeds in pot A and five seeds in pot B. The amount and type of soil in both pots was the same. She added the same amount of water to both pots each week. Pot A was placed in a sunny window. Pot B was placed in a dark room. After four weeks, she observed the plants in both pots. The plants in pot A were green, with tall, thick stems. The plants in pot B were yellow, with tall, thin stems. Which statement best explains why the plants in pot A were different from the plants in pot B?

What is the smallest particle of matter?

Which of the following examples is an element?

Carbon has a mass number of 12. Thus, it has neutrons.

What element does the Bohr model represent?

A combination of substances that can easily separate into its original parts is known as a(n)

Substance that cannot be broken down into any other substances by chemical or physical means is a(n)

Two or more different elements chemically combined is a(n)

Which mixture will be considered an example of a homogeneous mixture?

Examine the table for properties of various substances (A-E) shown here. Calculate the densities for each of these substances. Determine which substances will float in water, which has a density of 1.0 g/ml.

What is the density of an object that has a mass of 184g and a volume of 50mL?

Which state of matter typically has the HIGHEST density?

A balanced chemical reaction obeys the law of

Melting point is an example of a

Baking Bread is an example of a

Which is NOT a reactant in the chemical equation?

6CO² + 6H₂O + Sunlight → 6O2 + C6H12O6 

Which element is not equal on both sides of the equation to support the Law of Conservation of Matter?

Ag + 2HCl → AgCl² + H 

According to the chemical equation above, in an Endothermic Reaction, heat energy is a

Taking a hot shower would be considered an

Pepsi Vinegar Orange Juice

What property do all three of these common household substances have in common?

Phenolphthalein, changes to what color in an ammonia (base)?

A drop of clear liquid is placed on blue litmus paper, and the paper turns red. What does this tell us about the liquid? It is a(n)

Maria's father started a fire in the fireplace. He crumpled some paper, lit a match, and soon the logs in the fireplace were burning. In this case, the stored chemical energy in the logs was changed into

___ reactions transfer energy to the surroundings, usually as heat.

The light bulb converts electrical energy into light and

An example of kinetic energy being converted into heat energy is

A wet shirt is put on a clothesline to dry on a sunny day. The shirt dries because water molecules

The energy of electromagnetic waves, or vacuum of space.

Your hands get warm by a fire because ________________energy is converted into heat energy.

Marina is using a metal spoon to stir her hot soup. Why does the spoon feel warm?