Alex likes watching the news after dinner, however, his house cooled off enough for Alex to plug in a space heater to warm up his living room.
The space heater changes electrical energy to __________ in order for Alex to warm up.
Question 5
5.
Choose the words or phrases that make the sentence correct.
A Starbucks coffee is a __________ because it is made of two or more substances that are evenly mixed.
Question 6
6.
Choose the answer from the menu.
Esmerelda made a fruit salad for a girls get together.
The term that BEST describes what formed when Esmerelda mixed the fruit together is __________.
Question 7
7.
Question 8
8.
Question 9
9.
Question 10
10.
Question 11
11.
Question 12
12.
Question 13
13.
Question 14
14.
Question 15
15.
Question 16
16.
Drag each property type to the correct property.
attraction or repulsion to specific metals
appearance
texture
density
ability or inability to transfer heat
physical properties
magnetic properties
thermal properties
A student fills a large tank with 5 L of water. The student drops an apple, 3 marbles, a few coins, a plastic bottle, a pair of scissors, a fork, and a foam ball into the tank.
Drag each of the items to the correct density relative to water.
apple
marbles
scissors
fork
coins
plastic bottle
foam ball
Less dense than water
more dense than water
Which mixture could NOT be separated using a magnet?
Pebbles and marbles
Sand grains and seashells
Iron filings and pepper
Pepper and sugar
A cup of coffee has a mass of 315 g. If 25 g of creamer is added and evenly mixed in the coffee, what is the mass of the cup of coffee with the creamer now?
Between 326 g and 339 g
340 g
More than 340 g
325 g
A common treatment for a sore throat is to place salt in warm water and gargle the solution to relieve the pain. Select all the properties of the salt that will change when it forms the solution with water?
The size of the salt crystals
The texture of the salt
The taste of the salt
The shape of the salt crystals
A teacher pours 1 liter of water into a jar and then added 100 grams of sand to the jar. The teacher then waited 10 minutes and observed what happened.
What most likely happen to the mixture of sand and water?
The sand will remain at the top because it is was poured last.
The sand will sink to the bottom because it is more dense than water.
The sand will mix with the water and form a solution.
The sand will remain on the bottom because there is more of it.
Which of these best describes the change in sugar grains as they dissolve in water?
The grains are washed clean until they are perfectly clear.
The grains get smaller in size until they can no longer be seen.
The grains get higher in temperature until they melt into a liquid.
The grains change their chemicals until they become water.
Which of the mixtures in the image above maintained all of the physical properties of their ingredients?
Sea shells and sand, water and marbles, fruit salad
Marbles and water, sugar and water, fruit salad
Sea shells and sand, marbles and water, sugar and water
Sea shells and sand, marbles and water, sugar and water, fruit salad
A barista may add more sugar to coffee before serving it to people at Starbucks. How does sugar change when it is added to coffee?
The sugar disappears.
The grain size of the sugar changes.
The taste of the sugar changes.
The mass of the sugar changes.
A student wants to extract salt from a solution of saltwater. What is a possible way to extract the salt from the saltwater solution?
Use a pair of tweezers to pick out the individual crystals of salt from the water
Use a magnet to pull the salt crystals out of the solution
Boil the saltwater solution on a hot plate to allow the water to evaporate so the salt remains on the hot plate
Use a filter that has holes large enough to allow the water through but small enough to trap the salt
What occurs with the physical properties of salt when it is mixed with water?
The salt no longer tastes sweet
The physical properties of salt do not change
The salt dissolves and can no longer be seen as a solid
The salt evaporates into the water
Cindy and Mary decided to put corks and sand into a large plastic container. Later, Mary decided that the corks should be separated from the sand. The corks and sand can be separated by —