Space
What is the largest planet in our universe?
a Jupiter
b Saturn
c ROXs 42Bb
d Earth
c ROXs 42Bb
What gas do plants use for photosynthesis?
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Helium
B. Carbon dioxide ✅
What process do plants use to make their own food?
A. Respiration
B. Photosynthesis
C. Digestion
D. Fermentation
B. Photosynthesis ✅
Which type of rock forms from cooled lava or magma?
A. Sedimentary
B. Metamorphic
C. Igneous
D. Mineral
C. Igneous ✅
What is the ability to do work called?
A. Force
B. Motion
C. Energy
D. Power
C. Energy ✅
ISON is a named celestial object of what sort?
a Galaxy
b Asteroid
c Constellation
d Comet
d Comet
What is the hardest natural substance on Earth?
A. Gold
B. Iron
C. Diamond
D. Silver
C. Diamond ✅
Which pigment gives plants their green color?
A. Hemoglobin
B. Chlorophyll
C. Melanin
D. Keratin
B. Chlorophyll ✅
What is the hardest natural mineral on Earth?
A. Quartz
B. Diamond
C. Feldspar
D. Calcite
B. Diamond ✅
Which type of energy is stored in food?
A. Mechanical energy
B. Chemical energy
C. Thermal energy
D. Nuclear energy
B. Chemical energy ✅
C/2007 N3 (Lulin) is a named celestial object of what sort?
Which organ pumps blood through the human body?
A. Brain
B. Lungs
C. Heart
D. Liver
C. Heart ✅
What gas do plants release during photosynthesis?
A. Carbon dioxide
B. Nitrogen
C. Oxygen
D. Hydrogen
C. Oxygen ✅
Which rock type is formed by heat and pressure?
A. Igneous
B. Sedimentary
C. Metamorphic
D. Volcanic ash
C. Metamorphic ✅
What type of energy does a moving object have?
A. Potential energy
B. Kinetic energy
C. Solar energy
D. Sound energy
B. Kinetic energy ✅
What causes a solar eclipse?
A. Earth moves between the Sun and Moon
B. The Moon moves between Earth and the Sun
C. The Sun disappears behind clouds
D. Mars blocks the sunlight
B. The Moon moves between Earth and the Sun ✅
What is the chemical symbol for gold?
A. Ag
B. Au
C. Gd
D. Go
B. Au ✅
Which part of a plant absorbs water and minerals from the soil?
A. Leaf
B. Stem
C. Flower
D. Root
D. Root ✅
What is the main mineral found in granite?
A. Coal
B. Quartz
C. Talc
D. Gypsum
B. Quartz ✅
Which renewable energy source uses moving air?
A. Hydroelectric
B. Geothermal
C. Wind energy
D. Biomass
C. Wind energy ✅
Why do astronauts float in space?
A. There is no gravity in space
B. Their suits are filled with air
C. They are in continuous freefall around Earth
D. Space has strong winds
C. They are in continuous freefall around Earth ✅
Which blood type is known as the universal donor?
A. AB+
B. O+
C. O−
D. A−
C. O− ✅
What is the main function of a flower?
A. To absorb sunlight
B. To make seeds for reproduction
C. To store water
D. To support the stem
B. To make seeds for reproduction ✅
Which sedimentary rock is made mostly from compacted plant material?
A. Marble
B. Coal
C. Basalt
D. Obsidian
B. Coal ✅
A chemist dissolves 5.85 g of sodium chloride (NaCl) in enough water to make 500.0 mL of solution. What is the molarity of the solution?
A. 0.100 M
B. 0.200 M
C. 0.500 M
D. 1.00 M
B. 0.200 M ✅