Unit 1 Science Review

Multiple Select

When comparing the properties of the items in the table, which TWO statements BEST describe the density of the items?

• The fork is less dense than water.

• The cork is less dense than the marble.

• The marble is more dense than the ping-pong ball.

• The ping-pong ball is more dense than water.

Open Ended

Based on the observations, explain what material would be best to insulate electrical wires? Support your answer with evidence from the chart.

Multiple Choice

Which two physical properties do sand, salt, and iron filings have in common that allow them to be classified together?

• Solubility and Size

• Physical State and Size

• Magnetism and Physical State

• Solubility and Magnetism

Multiple Choice

Javier fills a container with 100 ml of water. He uses a digital scale to measure the mass of the beaker and the water. The mass of the beaker and water is 220 grams. He then adds 30 grams of sugar to the water, and mixes it together to form a solution.  Using the same digital scale, what would be the mass of the beaker with the solution he made?

• 200g

• 250g

• 50

• 120g

Multiple Select

Which results will the student most likely observe after the mixture has been stirred for 15 seconds?

Select TWO correct answers.

• The water will remain clear.

• The salt will dissolve

• The salt will float on top of the water.

• The salt will sink to the bottom of the cup.

Multiple Choice

Which of the tested substances is soluble in water?

• Substances 1, 2, and 4

• Substances 3 and 7

• Substances 5 and 6

• Substance 7 only

Multiple Choice

Based on the data collected, which material is the best insulator over the 18 minutes?

• Material A

• Material B

• Material C

• Material D

Multiple Choice

Based on Julie’s observations, how can she best illustrate the particles that make up her substance?

• Draw small particles close to each other.

• Draw small particles spread out across the page.

• Draw small particles tightly packed against each other.

• All of the above.

Multiple Choice

Michael is working on a project. He collects 200 grams of sand and 20 milliliters of water. What will Michael observe when he mixes the sand and the water together?

• The sand will be dissolved in the water.

• The physical properties of sand and water do not change.

• Michael will observe a clear water solution.
• Michael will observe a dry sand pile.

Multiple Choice

What is the best tool to separate iron fillings and rice.

• sieve

• hot plate

• coffee filter

• magnet

Multiple Choice

What is the best tool to separate rocks and sand.

• sieve

• hot plate

• coffee filter

• magnet

Multiple Choice

What is the best tool to separate pepper and water.

• sieve

• hot plate

• coffee filter

• magnet

Multiple Choice

What is the best tool to separate sugar and water

• sieve

• hot plate

• coffee filter

• magnet

Fill in the Blanks

Matter is conserved in solutions. Fill in the blank: When sugar dissolves in water, the total mass of the solution

the total mass of the water and sugar before mixing.

Multiple Choice

Which of the following properties would you consider MOST important when choosing a material to insulate electrical wires?

• Ability to conduct electricity

• Flexibility

• Ability to float in water

• Does not conduct electricity

Open Ended

Reflecting on today's lesson about the physical properties of matter, what is one new thing you learned about how materials can be used based on their properties?