Mixtures

A mixture is a combination of two or more____________ in which no new kinds of matter are formed.

• substances

• parts

• leaves

• pebbles

Lemonade is a special mixture called a 

• substance
• solution
• plasma
• ingredient

What is a combination of 2 or more substances that keep their identities?

• physical property

• mixture

• physical change

• chemical change

Tags

NGSS.5-PS1-4

Which of the following is a solution?

• lemonade

• nut mix

• legos in a box

• iron filings and sand

Air is mixture made up of 79% nitrogen, 20% oxygen and 1% other gases. Which substance is the solvent?

• nitrogen

• oxygen

• some other substance

Maya designed an experiment to answer the following question: How does the amount of water given to a lima

bean seed affect how tall it grows?

In this experiment, what is the independent variable?

• the amount of water

• the kind of plant

• the type of soil

• the amount of sunlight it gets

Maya designed an experiment to answer the following question: How does the amount of water given to a lima

bean seed affect how tall it grows?

Multiple answer!!!! Which variables does Maya need to control in her experiment?

• the amount of water each plant gets

• the amount of soil

• the type of plant

• the amount of sunlight each plant gets

Anthony designed an experiment to answer the following question: How does the temperature of water affect the time it takes for a sugar cube to dissolve?

Which variable is the Independent Variable?

• the amount of water he uses

• the size of the sugar cubes

• the temperature of the water

Anthony designed an experiment to answer the following question: How does the temperature of water affect the time it takes for a sugar cube to dissolve?

Multiple answers!!! Which variable should Anthony control in his experiment?

• the amount of water

• the size of the sugar cubes

• the temperature of the water

How could you separate iron filings from sand?

• Use a sieve.

• Pick out the sand

• Use a magnet