Science Quiz

Read the information below to answer question 1.

Regina’s mom gave her a fighting fish for her birthday. She put the goldfish in a fishbowl and filled it with water and put it on her dresser. A couple of days later, Regina noticed that the water level had decreased. What could be the possible explanation for the decrease in water level in the fishbowl?

• As the fish swam around, it drank the water in the bowl which decreased the amount of water in the bowl.

• As the fish swam around it knocked water out of the bowl.

• The rocks and plants in the bowl soaked up the water which caused a decrease in the amount of water in the bowl.

• Due to the temperature in the room the water began to evaporate causing a decrease in the amount of water in the bowl.

Tags

CCSS.3.MD.A.2

Think about the definition of mixture. Which of the following properties do all mixtures have? Select all that apply to mixtures.

• made of parts that can be separated

• are considered pure substances

• made of parts that react chemically with each other

• are formed by physically combining two or more substances

• made of parts that cannot be separated

Read the information below to answer the question.

Rafael's dad filled a plastic gas can half full at the gas station. He left the closed gas can in the sunshine while he mowed the lawn. When it was time to fill the lawn mower, the sides of the gas can were pushing out. Which answer best explains why the gas can changed shape?

• The heat from the sun expands particles that are too small to be seen, and they rise into the unfilled part of the gas can.

• The gas molecules in the can began to create more molecules because it is not moving which caused the can to fill up and swell.

• There is conservation of molecules in every change of the state of matter.

• Matter has weight and can have shape depending on the type of container.

Tags

CCSS.5.MD.C.3

Ira made salad for dinner. He cut up spinach, tomatoes, radishes, onions, and carrots. Ira then combined these ingredients in a bowl. Which term describes the salad shown in the picture?

• alloy

• mixture

• solution

• conductor

James blows up a balloon as a demonstration in class.

Which sentence explains what he is trying to show his class?

• Air has no weight, which will cause the balloon to float.

• Air is made of very large particles that are invisible.

• Air is not made of matter and will have no effect on the balloon.

• Air is made of particles that are very small and cannot be seen.

Students studied the physical properties of the four metals listed in the table below.

 The students mixed equal volumes of zinc, iron, and magnesium in a beaker.

The properties of the mixture are best described as having ________.

• a dark gray and shiny appearance

• the ability to conduct electricity and heat

• chemical properties of magnesium only

• chemical properties different from the individual metals

Use the information below to answer the question.

Atoms are the building blocks of matter. They are found in everything around us and within us. Below is a diagram of an atom. The center of the atom represented by Label A is ________, and it is the part of the atom where most of the mass of the atom is held. The blue items represented by Label B are positively charged items called ________. The red items represented by Label C have no charge and are called ________. Electrons can go to higher energy levels by absorbing energy from its surroundings. Select the option which best completes the passage above and identifies parts of an atom.

• neutrons, protons, electrons, nucleus

• protons, neutrons, nucleus, electrons

• nucleus, protons, neutrons, electrons

• electrons, nucleus, neutrons, protons

Sylena mixed together sand, salt, and iron filings in 150 mL of water. Which series of steps will most easily separate out each of the substances?

• Heat the solution and filter out the sand and salt.

• Filter out the sand and iron filings. Attract the iron with a magnet. Heat and evaporate off the water from the salt.

• Attract the iron filings with a magnet. Filter out the salt. Evaporate the water from the coarse sand.

• Filter out the salt and attract the iron filings with a magnet.

Read the information below to answer question.

A student poured five different clear, colorless liquids into five different beakers. Each beaker was half-filled with the liquid. The student added 1 gram of a white powder and stirred each mixture. The student’s observations are recorded in the data table.

In which two mixtures was a new substance formed?

• Mixture 1 and Mixture 2

• Mixture 2 and Mixture 3

• Mixture 3 and Mixture 5

• Mixture 4 and Mixture 5

• Mixture 1 and Mixture 3

Read the scenario below and answer.

One day Stephen and his father were planting trees in the backyard. His dad asked him to put the shovels in the shed when they were finished. Just then it started to rain and instead of putting the shovels in the shed he left them outside the shed. For the next seven days there was heavy rain. When the rain finally stopped Stephen’s dad asked him to get the shovels so they could finish landscaping the yard.  When Stephen approached the shed he saw the shovels. However, they looked different from when they last used them. Part of the shovels were now a reddish-brown color.

Which statement below explains why part of the shovels turned a reddish-brown color?

• The shovel was exposed to dirt and it caused rust.

• The shovels was exposed to oxygen in the rain and formed rust.

• The paint covering the shovels washed off in the rain.

• The shovels was exposed to the sun and caused rust.