Science Fusion 4th Grade Unit 8

Jayleen wants to cook rice for dinner. She puts some water into a pot and turns on the stove. After about 5 minutes, the pot looks like the one shown here. Which of these statements is true?

• The stove chemically changes the pot.

• The water undergoes a physical change.

• The water and the pot form a solution.

• The water and the pot react chemically.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Daniel puts some ice cubes in a glass of water. He leaves his glass on the counter. When he returns, the ice is gone. Which statement is true?

• Daniel observes a mixture form.

• Daniel observes a solution form.

• Daniel observes a chemical reaction.

• Daniel observes a physical change.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Physical changes happen when a substance changes, but its composition doesn’t. Which of the following is a physical change?

• burning

• freezing

• decaying

• rusting

Tags

NGSS.MS-PS1-4

Emily is having an outdoor party. They go to a nearby park on a sunny day. Which party activity describes a chemical change?

• climbing the monkey bars

• cooking hamburgers on a grill

• playing hide-and-seek

• putting a hot dog and mustard on a bun

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Solutions are special types of mixtures. Which of the items below is a solution?

• carbonated water

• gelatin with bananas

• spicy salad dressing

• orange juice with pulp

Chris is making caramel apples. He heats sugar, stirring it in a pan on a stove. As he stirs, the sugar turns brown. He puts a stick into an apple and swirls the apple through the caramel. Then Chris waits for the caramel to harden.

Which of the following is a chemical change?

• the heat dissolving the sugar

• the sugar becoming caramel

• the caramel hardening

• the sugar melting

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

At the beach, Katelyn feels the warm sand and smells the sea salt in the air. She finds a broken shell and a brownish nail. Which one of her observations is the result of a chemical change?

• warm sand

• sea salt smell

• brownish nail

• broken shell

The picture of the salad shows a combination of two or more different substances in which the substances

keep their own properties. This salad is an example of a _______________.

• Solution

• Mixture

• Chemical Change

• Physical Change