STAAR REVIEW DAY 2

Before the girl started pushing the cart, the cart was at rest. After she started pushing, the cart moved to the east with a constant speed of 3 m/s. What type of force is being placed on the cart by the girl who is pushing the cart?

• balanced

• unbalanced

• No force

When the cart moves 3 m/s east, this is known as its ____.

• speed

• velocity

• acceleration

Tectonic Plate movement is caused by ______________.

• the rotation of the Earth

• ocean tides

• convection currents in the mantle

• the moon's gravity

Plants obtain the majority of the carbon necessary for building their structural molecules from —

• air

• microorganisms

• soil

• water

2AgNO₃ + K₂SO₄ --> Ag₂SO₄ + 2KNO₃

​ (a)   has the most atoms in this chemical equation and ​ ​ (b)   has the least number of atoms in this chemical equation.

• Oxygen
• Potassium
• Silver
• Sulfur

If I see the New Moon tonight, how long will it be until I see the New Moon again?

• 7 days

• 3-4 days

• 2 months

• 28-30 days

When would you expect the next first quarter moon?

What part of the cell determines the shape of a bird's beak?

• chloroplasts

• nucleus

• vacuole

• mitochondria

A heterotroph is another word for a ________, meaning it needs to ________

• Consumer, eat other organisms

• Consumer, go through photosynthesis

• Producer, make its own food

• Producer, survive without water

What do the arrows show in this food chain:

plant → grasshopper → bird → snake → owl.

• The arrow points from the organism being eaten to the organism that eats it.

• The arrow points from the organism that eats it to the organism that is being eaten.

• The arrow points from biggest animal to smallest animal.

• The arrow points from the consumers to the producers.