STEMscopes

Xylem is a plant tissue made up of elongated cells stacked end to end the length of the plant’s stem. Which function is xylem specifically adapted to perform in plants?

• help prevent water loss

• exchange gases with the atmosphere

• capture sunlight for photosynthesis

• transport water from roots to leaves

Mountain lions are large cats and the top predator in their habitat. A population of mountain lions may vary in several characteristics. If a prey becomes scarce, competition between mountain lions for food will increase. Which variation would provide an advantage to the individuals that possessed it?

• a spotted coat

• short fur

• long legs

• abundant whiskers

Tags

NGSS.MS-LS2-1

NGSS.MS-LS4-4

Which of the following is a complete list of the outer planets?

• Venus, Earth, Mars, Jupiter

• Mercury, Venus, Earth, Mars

• Jupiter, Saturn, Uranus, Neptune

• Mercury, Venus, Earth, Jupiter

The orbits of the objects in the solar system are the direct result of which of the following feature of the Sun?

• Its magnetic field

• Its brightness

• Its gravitational pull

• Its chemical composition

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

If someone is building a scale model of our solar system which characteristic would be the most difficult to build into the model?

• The relative sizes of the objects

• The colors of the objects

• The distances between objects

• The composition of the objects

Tags

NGSS.MS-ESS1-3

The force of gravitational attraction between the Sun and Venus could be increased by reducing which of the following?

• The period of rotation of the Sun

• The distance between the Sun and Venus

• The speed of the orbit of Venus

• The colors of the Sun and Venus

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What are the characteristics of the outer planets in the solar system?

• Giant balls of gas and ice

• Hard and rocky

• Very Large

• Smaller

• Have many moons

What is the primary function of chlorophyll in plants?

• A) Absorb water

• B) Absorb sunlight

• C) Absorb nutrients

• D) Absorb carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following best describes the process of photosynthesis?

• A) Conversion of glucose into energy

• B) Conversion of sunlight into chemical energy

• C) Conversion of oxygen into carbon dioxide

• D) Conversion of water into oxygen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In an experiment, a student measures the growth of plants under different colored lights. Which variable is the independent variable?

• A) The growth of the plants

• B) The type of plant used

• C) The color of the light

• D) The amount of water given

Tags

NGSS.MS-LS1-5