Science Term 2 Final Exam Review

The _________ variable is what the scientist is measuring.

• dependent
• independent

• control

• changed

Tags

NGSS.MS-PS1-2

The _____________ variable is what the scientist is changing.

• dependent

• independent

• control

• stable

A gardener wants to know if the amount of sunlight she gives a plant affects how tall a plant grows. She buys 3 of the same plants and places them in 3 similar flower pots using the same soil. She puts one plant in an area that gets lots of sun, one plant in an area that gets a little sun, and another plant in an area that gets no sun. She gives each plant the same amount of water daily for 2 weeks and then records how tall the plants grew. What is the independent variable?

• amount of sunlight
• how tall the plants grew
• types of plants
• amount of water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Why did the water climb up the chromatography paper?

• Water climbs up everything
• The water molecules were attracted to the paper molecules
• The water molecules were NOT attracted to the paper molecules
• The water did not climb up the paper

A gardener wants to know if the amount of sunlight she gives a plant affects how tall a plant grows. She buys 3 of the same plants and places them in 3 similar flower pots using the same soil. She puts one plant in an area that gets lots of sun, one plant in an area that gets a little sun, and another plant in an area that gets no sun. She gives each plant the same amount of water daily for 2 weeks and then records how tall the plants grew. What is the dependent variable?

• amount of sunlight
• how tall the plants grew
• types of plants
• amount of water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What is chromatography used for?

• To mix ingredients
• To separate a mixture
• To change colors in a mixture
• To apply chrome to an object

The Law of Conservation of Matter states that...

• Matter can be created and destroyed, but it cannot change form.
• Matter can be created and change form, but cannot be destroyed
• Matter cannot be created nor destroyed and cannot change form.
• Matter cannot be created nor destroyed, it can only change form.

Tags

NGSS.MS-PS1-5

Check off all the ingredients that leave sediments when in water

• Cumin
• Citric Acid
• Pepper
• Sugar

Check off all ingredients that dissolve when in water

• Sugar
• Cumin
• Pepper
• Citric Acid

Why does sugar dissolve when mixed with water?

• Sugar is white so it is hard to see when mixed with water
• Sugar disappears in any liquid, no matter what
• Sugar molecules and water molecules are attracted to each other
• Sugar molecules and water molecules are not attracted to each other