Which of the following is the correct definition of a mixture?

When you cook with salt, the salt dissolves into the food. What physical property of the salt remains the same after it dissolves?

The beaker below contains a mixture of clay, wood and iron beads. What makes this mixture easy to separate?

A teacher mixes salt and pepper together in a beaker and asks the students to separate the mixture. Which physical property can be used to separate this mixture?

Which tool would be most useful in separating sand and water?

A student collects a mixture of dirt and rocks from the park near her house. What would be the best way to separate the two parts of the mixture?

Several ways to separate mixtures are listed below:

A student is given a mixture of iron filings and sand.

1. Pour the mixture through filter paper.

2. Use a magnet to collect one part of the mixture.

3. Evaporate the water by boiling the mixture.

4. Use tweezers to collect one part of the mixture.

Which of the ways listed above is the best way to separate the mixture?

Which of the following is NOT a mixture?

All of the following tools would be helpful in separating a mixture of sand and salt except –

A teacher mixes sugar and water together in a beaker and stirs the mixture until the sugar completely dissolves. Which would be the best tool to separate the two parts of the mixture?

Which mixture below could be easily separated using filter paper?

When you mix oil and water together, the oil sits on top of the water. Why does this happen?

To make lemonade, you dissolve lemon juice and sugar in a pitcher of water. What property of the sugar remains the same after it dissolves in the lemonade?

Which physical property would be most useful in separating iron beads from clay beads?

Which tool shown below would be most useful in separating a mixture of iron filings and dirt?

Which physical property would be most useful in separating wood beads from clay beads?

All of the following are examples of mixtures except –

Several ways to separate mixtures are listed below:

A student is given a mixture of sugar and water. Which of the ways listed above is the best way to separate the mixture?

1. Pour the mixture through filter paper.

2. Use a magnet to collect one part of the mixture.

3. Evaporate the water by boiling the mixture.

4. Use tweezers to collect one part of the mixture.

Which picture correctly represents what happens when you mix oil and water?

A teacher mixes salt, pepper and iron filings in a beaker. Which two physical properties can be used to separate these three materials?

A teacher mixes four different colors of candycoated chocolates in a bowl. What would be the best way to separate the four different candies in the mixture?

A student dissolves 100 g of salt in a beaker of water. Then the mixture is boiled until all of the water evaporates. How much salt most likely remains?

Which mixture below could be easily separated using a magnet?

Which of the following is the correct scientific definition of a solution?

Which of the following is an example of a solution?

Which of the substances listed below will form a solution when mixed with water?

Which of the following is the correct definition of evaporation?

A student is making lemonade by mixing powdered lemonade mix into a pitcher containing 500 mL of water. Which amount of lemonade mix will produce the strongest tasting lemonade?

A student makes hot chocolate by mixing two scoops of hot chocolate powder into a mug of hot water. He does not finish his drink and leaves the mug sitting on the counter for the weekend. What does the hot chocolate in the mug most likely look like after the weekend?

A teacher shows some students a solution of sugar and water in a beaker. Then she adds four ice cubes to the solution. All the following properties of the solution change as the ice cubes melt except –

All of the following substances will dissolve when mixed with water except –

All of the following are examples of a solution except –

A teacher shows the students a solution of vinegar and water in a beaker. Then she adds one additional cup of vinegar to the beaker and stirs the solution. Which properties of the solution change after she adds more vinegar?

A teacher adds sugar into a beaker filled with water and mixes it until it completely dissolves. Which statement listed below is correct?

Which of the substances below will NOT dissolve when mixed with water?

A student collects ocean water in a jar at the start of a beach vacation. She forgets to put the lid on and leaves the jar in the hot sun for seven days. What does the student most likely find when she returns to her jar?

All of the following are correct statements about solutions except –

A teacher is conducting an experiment. He adds powdered lemonade to one beaker, sugar to a second beaker and sand to a third beaker. He then adds water to each beaker and stirs the three different mixtures and waits for two minutes. What physical property of the substances is he trying to demonstrate for the class?

Which of the following is an example of a solution?

Which of the following substances will dissolve when mixed with water?

A teacher shows his students a beaker filled with a water and salt solution. Which is the best way to separate the two parts of this solution?

An athlete prepared a water bottle filled with purple sports drink for her run. She added three scoops of powdered sports drink to the bottle and dissolved it in 500 mL of water. She decided it tasted too weak and added one more scoop of purple powder to the bottle. Which of the following most likely occurred when one more scoop of powdered sports drink was added?

A solution contains two parts, a solute and a solvent. Which of the following correctly defines the two terms?

Which of the following is an example of a solution?

All of the following substances will form a solution when mixed with water except –

Students are making solutions by adding drops of green food coloring to 100 mL of water. How many drops will make the lightest colored solution?

A teacher mixes a penny, salt and vinegar with 200 mL of water in three beakers and asks students to observe the results. What do the students observe?

Electrical wires are usually covered in plastic to help prevent electrical fires. Why does the plastic cover prevent electrical fires?

The picture below is a model of which physical state?

The properties of a mystery object are listed below:

The mystery object is most likely –

The left side of the scale has a total mass of 275 grams. The right side has a total mass of 250 grams. What is the easiest way to balance the scale?

A teacher has 8 identical wooden cubes at the front of the classroom. One cube has a mass of 6 grams. What is the total mass of all 8 cubes?

In science class, the teacher uses tongs to safely remove a beaker from a hot water bath. This is because –

Which of the following is the correct definition of magnetism?

Which of the following is soluble in water?

Which of the objects shown below will sink when placed in a bucket of water?

Which of the following is the correct definition of mass?

Which substance below is soluble when mixed with water?

Which of the objects listed below is attracted to a magnet?

What unit of measurement is used for mass in science class?

The picture below is a model of which physical state?

Which list below contains all solid materials?

Which of the objects shown below will float when placed in a bucket of water?

A student drops a metal bolt into a container of maple syrup and it sinks to the bottom. Why does the metal bolt sink?

Which of the materials below is the best conductor of thermal and electric energy?

If something is soluble in water, then it will –

A teacher pours sand and iron filings into a beaker. Then he places a strong magnet into the beaker. When he removes the magnet, it is covered with iron filings, but the sand remains in the beaker. Which physical property is the teacher demonstrating?

Water has a density of 1.0 g/cm3. Which substance below will float in water?

Based on the picture below, which statement is correct?

A science class is studying how well different materials insulate thermal energy. Boiling water (100oC) is poured into glass jars wrapped with different materials. The temperature is recorded after 15 minutes.

Which material is the best insulator?

Density is the measure of –

Which of the following materials has magnetic properties?

One student’s observations are listed below: o hard, cube-shaped, blue The substance described is most likely a –

A student accidentally places a tray filled with ice cubes in the refrigerator instead of the freezer. When she finds the tray the next morning she notices that –

Students are making homemade ice cream by mixing milk, cream, and sugar together in an ice cream maker. What must occur before these ingredients become ice cream?

When water condenses it goes from –

When water goes from the liquid state to the gas state it is called –

In an experimental investigation, hot water is poured into a glass and the top is covered with plastic wrap. What will the students most likely observe after waiting five minutes?

A student places a cup of grape juice in the freezer overnight. The next morning he observes –

When water goes from the liquid state to the solid state it is called – FG H J

Which of the following is a correct definition of condensation?

A student heats a pot of water to make pasta and notices bubbles appearing in the water. What change in the state of water is the student observing?

A student is eating a popsicle outside. At which temperature would the popsicle melt the fastest? AB C D

When water goes from the gas state to the liquid state it is called –

In science class, students are asked to determine how many milliliters of water are in 10 ice cubes. What must occur for this experimental investigation to work?

If you leave a glass of juice outside on a hot and sunny day, you will notice that water droplets form on the outside of the glass. Why does this happen?

When water evaporates it goes from –

When water goes from the solid state to the liquid state it is called –