Science CTBA 1 Reteach/Retest

Science CTBA 1 Reteach/Retest

by Julia A

​Question #1

​Look at the bars in the graph and look at the lines and numbers on the left side. Starting at the bottom, put your finger on the number 22 and follow each line up and count by 1s.

Multiple Choice

This graph shows the water temperature taken at the City Park swimming pool every day for 5 days. How much did the pool temperature change between Monday and Friday?

• 3

• 4

• 5

• 6

​Question #2

​When we are taking a test online, use your scatch paper to write down the different mixtures presented in the question.

​For example:

​salt + water = solution

Multiple Choice

Beaker 1 contains salt water and Beaker 2 contains sugar water. Which of the following does NOT describe the solutions in the beakers?

• Both solutions are liquids.

• The solutions are solids.

• They contain material dissolved in water.

• The solutions have the same volume.

​Question #3

​Santi has two balloons. One balloon is filled with 1 liter of helium gas, and the other is filled with 1 liter of liquid water. Santi places each balloon into separate, sealed 8 L containers. The pictures show the sealed containers and balloons.

Multiple Choice

When both balloons burst, they release their contents into the sealed containers. After a few moments, what will be the volume of helium gas and liquid water in the containers?

• Container A will have 1 liter of helium, and container B will have 1 liter of water.

• Container A will have 1 liter of helium, and container B will have 8 liters of water.

• Container A will have 8 liters of helium, and container B will have 1 liter of water.

• Container A will have 8 liters of helium, and container B will have 8 liters of water.

​Question #4

​What is liquid R?

​

​What is liquid S?

Multiple Choice

The picture shows what happens when salt is mixed into Liquid R to make Liquid S.

Using the picture, which of the following are mixtures?

• Neither are mixtures

• Both are mixtures

• Liquid R only

• Liquis S only

​Question #5

​On a question like this, it is best to draw your own diagram. If testing online, use your scratch paper.

​

​​Here is the question, draw your diagram:

​The picture below shows Beaker X filled with water and Beaker Y filled with corn syrup. Each beaker also has a cork and a paper clip placed inside them.

​If water and corn syrup were poured into the same beaker, and then a cork and paper clip were added afterward, which of following shows what this beaker would look like?

Multiple Choice

If water and corn syrup were poured into the same beaker, and then a cork and paper clip were added afterward, which of following shows what this beaker would look like?

​Question #6

Write or draw a diagram for each mixture mentioned in the question:

​

​​Students are observing earth materials. They put rocks and sand in the first beaker. They put rocks and water in the second beaker. They put sand and water in the third beaker. Which of the following best compares the materials in the containers?

Multiple Choice

​Students are observing earth materials. They put rocks and sand in the first beaker. They put rocks and water in the second beaker. They put sand and water in the third beaker. Which of the following best compares the materials in the containers?

• The first two beakers are mixtures of solids. The third beaker is a mixture of solids and liquids.

• The first and third beakers are mixtures of solids and liquids. The second beaker is a mixture of solids.

• The second and third beakers are mixtures of solids and liquids. The first beaker is a mixture of solids.

• The second and third beakers are mixtures of solids. The first beaker is a mixture of solids and liquids

Multiple Choice

How much water has been displaced in the image shown?

• 80 mL
• 100 mL
• 20 mL
• 60 mL

​Displaced Volume

​Remember, when finding the colume of an object we:

​

​Volume before

​Volume after

​

​(subtract to find the volume of the object)

Multiple Choice

After determining the mass of three different balls, Libby dropped each one into a graduated cylinder and recorded the results. According to her table --

• The mass of the ball has nothing to do with how much it sinks or floats.

• The ball with the smallest mass had the greatest volume.

• The ball with the largest mass had the largest volume.

• The water level rises as the mass of the object decreases.

Multiple Choice

A student adds glycerin, water, and cooking oil to a glass. Then the student puts a plastic ball in the glass. Which of these has the greatest density?

• Piece of plastic

• glycerin

• water

• cooking oil

Multiple Choice

If you start with a water level at 150 mLs in a graduated cylinder & you drop in a stone and the level raises to 157 mLs, what is the volume of the stone?

• 6 mLs
• 7 mLs
• 157 mLs