UA #1 Science Review 2024

What physical property do all of these substances share?
Baking soda

• Drink mix

• White sugar

• Less dense than water

• soluble in water

• Conductors

• Magnetic

What do the physical property do the ALL of the following substances share:

Cooking oil

wooden toothpick

cork

• less dense than water

• soluble in water

• more dense than water

• magnetic

What do the physical property do the ALL of the following substances share:

Aluminum can

copper wire

steel bolt

gold ring

• less dense than water

• soluble in water

• conductors

• magnetic

Ms. Hicks adds sand and marbles into a glass container to make a mixture. Before she combines them, she records the mass and volume of each ingredient on her data table:

Sand mass=80g and volume =30ml

Marbles mass=85g and volume=20ml

Which is

• The mass of the mixture is 50ml

• The volume of the mixture is 165g

• The mass of the mixture is 165g

• The volume of the mixture is 10ml

Ms. Hicks is doing an investigation to see how much liquid water she can get from a bag of frozen ice. What must she do to perform answer this?

• Put the bag of ice in the freezer to keep the ice a solid

• Take the bag outside in a cooler

• Change the temperature to melt the solid into a liquid

• Change the temperature to freeze the ice into a liquid

A group of students is given four small cubes of the same size and instructed to place them in a beaker of water. One cube floats to the surface of the water. Two of the cubes float in the middle of the beaker under the surface of the water. The last cube sinks to the bottom of the beaker. 

What conclusion can they make from performing this experiment?

• All of the cubes have the same masses

• All of the cubes are made out of the same materials

• All of the cubes are made out of different materials

• One of the cubes in MORE dense than the other three cubes.

Ms. Hicks stirs sugar into a cup of hot water when she is making hummingbird food to put in her outside feeders. What is one physical property of the sugar that changes

• The taste

• The color of the sugar

• The physical state of the sugar

• The mass of the sugar

What is the ONLY way to separate a solution of sugar water?

• Filtration

• Sieve

• Laser beam

• Evaporation

A beaker with 125 mL of solution has a temperature of 15°C. The solution contains 15 g of salt and 110 mL of water. Students added four ice cubes to the solution and left the beaker on a lab table for 30 minutes. After the ice melted, how did the solution change?

• The physical state of the solution changed from a liquid to a solid

• The temperature of the solution increased

• The volume of the solution increased and the mass increased

• The mass of the solution increased by adding the ice cubes

A teacher wears protective gloves to lift a metal pan filled with boiling water from a hot plate. Why are the protective gloves necessary?

• The metal pan insulates thermal energy.

• The metal pan conducts thermal energy.

• The metal pan reduces thermal energy.

• The metal pan produces thermal energy.