Day 2 - Matter

Which object has a physical property that conducts electricity?

• foam cup

• metal fork

• plastic knife

• wooden spoon

Why is a vegetable salad considered a mixture?

• The particles are very small.

• The vegetables can be put together easily.

• Each part keeps its own identity.

• All of the colors and flavors fit well together.

A scientist has a special container of ocean water. She wants to keep it so she can study it further. Her lab gets a lot of sunlight every day. What can she do to keep the ocean water from turning into just a pile of salt?

• Cover the container to prevent evaporation

• Increase the temperature of the container.

• Separate the water into different containers

• Add more plain water to the container.

Suppose you were asked to identify the properties of most fire trucks.

Select the best choices below

• red

• purple

• large

• small

• loud

Tags

NGSS.2-PS1-1

Juan made spaghetti. He cooked the pasta, meatballs, and tomato sauce. Juan then combined these ingredients in a bowl.

• alloy

• mixture

• solution

• conductor

Bob found a metal can of soup. Which list describes the most likely physical properties of the can?

• shiny, hard, reflective

• very soft, conducts heat

• conducts electricity, square

• magnetic, flexible, very soft

Lezza wants to show her classmates an example of solubility. Which of these should she show?

• Pour a spoonful of salt into a glass of water.

• Place a metal fork in a circuit to see if a light bulb shines.

• Place a rock in a beaker of water to find the volume of the rock.

• Pour a spoonful of salt into a balance to find the weight of the salt.

Tags

NGSS.MS-PS1-2

Danea has a mixture of two solids. One is white and is tiny crystals. The other solid is black and is tiny flakes. She pours water on them. The white solid disappears, and the black solid floats to the top of the water. Which two materials did Danea most likely mix together?

• salt and pepper

• milk and iron filings

• white and black sand

• sugar and powdered drink mix

Tags

NGSS.MS-PS1-2

A mixture that has the same composition throughout because all its parts are mixed evenly.

• physical property

• mixture

• solution

Anything that you can observe about an object by using one or more of your senses.

• physical property

• mixture

• solution

Tags

NGSS.5-PS1-3