Review 1st Quarter

If someone who studies and investigates the natural world is called a scientist, what do you call someone who creates new products or ideas through innovation?

• inventor

• scientist

• expert

• scholar

After being left outside in the rain, an iron fence develops a reddish-brown layer on its surface. This shows a change in chemical composition — specifically, rusting.

• mass

• color

• shape

• flexibility

While cleaning the classroom, Maria separates the colored papers into red, blue, and yellow piles and groups fabrics as either rough or smooth. What skill is she demonstrating?

• measuring

• observing

• classifying

• predicting

Before planting seeds, Mary says, “I think these seeds will sprout faster if placed in sunlight,” based on his observations from last year. What skill is he demonstrating?

• observing

• classifying

• communicating

• predicting

During a nature walk, Liza looks at two leaves and notices that one is longer than the other. Which process skill is she applying?

• observing

• classifying

• comparing

• measuring

While preparing for an experiment, you notice a classmate about to mix chemicals without any eye protection. What should you remind them to do first?

• safety practice

• guessing

• comparing

• classifying

After a group science activity, you see the work area cluttered with materials and spills on the table. What should you do to show good scientific values?

• safety

• responsibility

• predicting

• accuracy

Which of the following is a chemical change caused by mixing materials?

• ice melting

• sugar dissolving in water

• water boiling

• vinegar reacting with baking soda

Which type of scientist studies the weather and makes forecasts?

• biologist

• meteorologist

• chemist

• astronomer

What do you call a scientist who studies celestial bodies like planets, moons, and stars?

• biologist

• meteorologist

• chemist

• astronomer